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815164011906048 = 210367155998159
BaseRepresentation
bin1011100101011000110010100…
…1010111010000010000000000
310221220020220210120012201000000
42321112030221113100100000
51323321121344021443143
612005413102144000000
7333462441062222640
oct27126145127202000
93856226716181000
10815164011906048
11216811130491362
12775142b6300000
1328cb083748489c
1410542212010520
156439447686bd3
hex2e563295d0400

815164011906048 has 308 divisors, whose sum is σ = 2792206073898880. Its totient is φ = 232904001908736.

The previous prime is 815164011906047. The next prime is 815164011906061. The reversal of 815164011906048 is 840609110461518.

815164011906048 is a `hidden beast` number, since 8 + 1 + 5 + 1 + 6 + 401 + 190 + 6 + 0 + 48 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 815164011905985 and 815164011906003.

It is not an unprimeable number, because it can be changed into a prime (815164011906047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 72773608 + ... + 83224551.

Almost surely, 2815164011906048 is an apocalyptic number.

It is an amenable number.

815164011906048 is an abundant number, since it is smaller than the sum of its proper divisors (1977042061992832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

815164011906048 is an equidigital number, since it uses as much as digits as its factorization.

815164011906048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155998204 (or 155998171 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 54.

The spelling of 815164011906048 in words is "eight hundred fifteen trillion, one hundred sixty-four billion, eleven million, nine hundred six thousand, forty-eight".