20116512625 has 32 divisors (see below), whose sum is σ = 28024723584. Its totient is φ = 14289912000.

The previous prime is 20116512617. The next prime is 20116512631. The reversal of 20116512625 is 52621561102.

It is not a de Polignac number, because 20116512625 - 2³ = 20116512617 is a prime.

It is a super-4 number, since 4×20116512625⁴ (a number of 42 digits) contains 4444 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110994 + ... + 229243.

It is an arithmetic number, because the mean of its divisors is an integer number (875772612).

Almost surely, 2^20116512625 is an apocalyptic number.

20116512625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20116512625 is a deficient number, since it is larger than the sum of its proper divisors (7908210959).

20116512625 is a wasteful number, since it uses less digits than its factorization.

20116512625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340306 (or 340296 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The spelling of 20116512625 in words is "twenty billion, one hundred sixteen million, five hundred twelve thousand, six hundred twenty-five".