100161315525 has 12 divisors (see below), whose sum is σ = 165600041792. Its totient is φ = 53419368240.

The previous prime is 100161315511. The next prime is 100161315533. The reversal of 100161315525 is 525513161001.

It is not a de Polignac number, because 100161315525 - 2⁴ = 100161315509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100161315492 and 100161315501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 667742029 + ... + 667742178.

Almost surely, 2^100161315525 is an apocalyptic number.

100161315525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100161315525 is a deficient number, since it is larger than the sum of its proper divisors (65438726267).

100161315525 is a wasteful number, since it uses less digits than its factorization.

100161315525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335484220 (or 1335484215 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 30.

Adding to 100161315525 its reverse (525513161001), we get a palindrome (625674476526).

The spelling of 100161315525 in words is "one hundred billion, one hundred sixty-one million, three hundred fifteen thousand, five hundred twenty-five".