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10655155997 = 15170563947
BaseRepresentation
bin10011110110001100…
…01100011100011101
31000111120120000012022
421323012030130131
5133310204442442
64521144545525
7525021221513
oct117306143435
930446500168
1010655155997
114578615452
1220944822a5
13100a658245
147311864b3
154256733d2
hex27b18c71d

10655155997 has 4 divisors (see below), whose sum is σ = 10725720096. Its totient is φ = 10584591900.

The previous prime is 10655155991. The next prime is 10655155999. The reversal of 10655155997 is 79955155601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79955155601 = 163490522427.

It is a cyclic number.

It is not a de Polignac number, because 10655155997 - 214 = 10655139613 is a prime.

It is a super-2 number, since 2×106551559972 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10655155991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35281823 + ... + 35282124.

It is an arithmetic number, because the mean of its divisors is an integer number (2681430024).

Almost surely, 210655155997 is an apocalyptic number.

It is an amenable number.

10655155997 is a deficient number, since it is larger than the sum of its proper divisors (70564099).

10655155997 is an equidigital number, since it uses as much as digits as its factorization.

10655155997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70564098.

The product of its (nonzero) digits is 2126250, while the sum is 53.

The spelling of 10655155997 in words is "ten billion, six hundred fifty-five million, one hundred fifty-five thousand, nine hundred ninety-seven".

Divisors: 1 151 70563947 10655155997