23502516140 has 24 divisors (see below), whose sum is σ = 49365162672. Its totient is φ = 9399124800.

The previous prime is 23502516137. The next prime is 23502516187. The reversal of 23502516140 is 4161520532.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12911 + ... + 217190.

It is an arithmetic number, because the mean of its divisors is an integer number (2056881778).

Almost surely, 2^23502516140 is an apocalyptic number.

23502516140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23502516140 is an abundant number, since it is smaller than the sum of its proper divisors (25862646532).

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

23502516140 is a wasteful number, since it uses less digits than its factorization.

23502516140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235217 (or 235215 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The spelling of 23502516140 in words is "twenty-three billion, five hundred two million, five hundred sixteen thousand, one hundred forty".