23161130616 has 64 divisors (see below), whose sum is σ = 66024957600. Its totient is φ = 6707294208.

The previous prime is 23161130593. The next prime is 23161130653. The reversal of 23161130616 is 61603116132.

It is a super-2 number, since 2×23161130616² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2178061 + ... + 2188668.

Almost surely, 2^23161130616 is an apocalyptic number.

23161130616 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

23161130616 is an abundant number, since it is smaller than the sum of its proper divisors (42863826984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23161130616 is a wasteful number, since it uses less digits than its factorization.

23161130616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4366768 (or 4366764 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

Adding to 23161130616 its reverse (61603116132), we get a palindrome (84764246748).

The spelling of 23161130616 in words is "twenty-three billion, one hundred sixty-one million, one hundred thirty thousand, six hundred sixteen".