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80561849416151 = 431186918444121
BaseRepresentation
bin10010010100010101000100…
…011010101011100111010111
3101120020122012210122121122012
4102110111010122223213113
541024411131422304101
6443201334103254435
722653254505265355
oct2224250432534727
9346218183577565
1080561849416151
11237400a78303a4
12905151444a41b
1335c4c4693c94c
1415c73001287d5
1594a8ea339bbb
hex4945446ab9d7

80561849416151 has 4 divisors (see below), whose sum is σ = 80748767860704. Its totient is φ = 80374930971600.

The previous prime is 80561849416099. The next prime is 80561849416189. The reversal of 80561849416151 is 15161494816508.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80561849416151 - 210 = 80561849415127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80561849446151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93459221630 + ... + 93459222491.

It is an arithmetic number, because the mean of its divisors is an integer number (20187191965176).

Almost surely, 280561849416151 is an apocalyptic number.

80561849416151 is a deficient number, since it is larger than the sum of its proper divisors (186918444553).

80561849416151 is a wasteful number, since it uses less digits than its factorization.

80561849416151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186918444552.

The product of its (nonzero) digits is 8294400, while the sum is 59.

The spelling of 80561849416151 in words is "eighty trillion, five hundred sixty-one billion, eight hundred forty-nine million, four hundred sixteen thousand, one hundred fifty-one".

Divisors: 1 431 186918444121 80561849416151