23161536351 has 24 divisors (see below), whose sum is σ = 35485232640. Its totient is φ = 14516658000.

The previous prime is 23161536317. The next prime is 23161536371. The reversal of 23161536351 is 15363516132.

23161536351 is a `hidden beast` number, since 2 + 3 + 1 + 6 + 15 + 3 + 635 + 1 = 666.

It is not a de Polignac number, because 23161536351 - 2²⁹ = 22624665439 is a prime.

It is a super-2 number, since 2×23161536351² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23161536301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 494575 + ... + 539376.

It is an arithmetic number, because the mean of its divisors is an integer number (1478551360).

Almost surely, 2^23161536351 is an apocalyptic number.

23161536351 is a deficient number, since it is larger than the sum of its proper divisors (12323696289).

23161536351 is a wasteful number, since it uses less digits than its factorization.

23161536351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034107 (or 1034104 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

The spelling of 23161536351 in words is "twenty-three billion, one hundred sixty-one million, five hundred thirty-six thousand, three hundred fifty-one".