16807261157 has 6 divisors (see below), whose sum is σ = 17854080498. Its totient is φ = 15818598464.

The previous prime is 16807261127. The next prime is 16807261181. The reversal of 16807261157 is 75116270861.

It can be written as a sum of positive squares in 3 ways, for example, as 10765930081 + 6041331076 = 103759^2 + 77726^2 .

It is not a de Polignac number, because 16807261157 - 2¹⁰ = 16807260133 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 (16807261127) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29078018 + ... + 29078595.

It is an arithmetic number, because the mean of its divisors is an integer number (2975680083).

Almost surely, 2^16807261157 is an apocalyptic number.

16807261157 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

16807261157 is a deficient number, since it is larger than the sum of its proper divisors (1046819341).

16807261157 is an equidigital number, since it uses as much as digits as its factorization.

16807261157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58156647 (or 58156630 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 44.

The spelling of 16807261157 in words is "sixteen billion, eight hundred seven million, two hundred sixty-one thousand, one hundred fifty-seven".