15641296131 has 32 divisors (see below), whose sum is σ = 22857456960. Its totient is φ = 9469845504.

The previous prime is 15641296103. The next prime is 15641296157. The reversal of 15641296131 is 13169214651.

It is not a de Polignac number, because 15641296131 - 2¹¹ = 15641294083 is a prime.

It is a super-2 number, since 2×15641296131² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 15641296131.

It is not an unprimeable number, because it can be changed into a prime (15641294131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4188141 + ... + 4191873.

It is an arithmetic number, because the mean of its divisors is an integer number (714295530).

Almost surely, 2^15641296131 is an apocalyptic number.

15641296131 is a deficient number, since it is larger than the sum of its proper divisors (7216160829).

15641296131 is a wasteful number, since it uses less digits than its factorization.

15641296131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6615.

The product of its digits is 38880, while the sum is 39.

The spelling of 15641296131 in words is "fifteen billion, six hundred forty-one million, two hundred ninety-six thousand, one hundred thirty-one".