20125461032172 has 24 divisors (see below), whose sum is σ = 52177121194800. Its totient is φ = 6708487010688.

The previous prime is 20125461032153. The next prime is 20125461032191. The reversal of 20125461032172 is 27123016452102.

20125461032172 is a `hidden beast` number, since 2 + 0 + 1 + 2 + 5 + 4 + 610 + 32 + 1 + 7 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (20125461032153) and next prime (20125461032191).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93173430597 + ... + 93173430812.

It is an arithmetic number, because the mean of its divisors is an integer number (2174046716450).

Almost surely, 2^{20125461032172} is an apocalyptic number.

It is an amenable number.

20125461032172 is an abundant number, since it is smaller than the sum of its proper divisors (32051660162628).

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

20125461032172 is a wasteful number, since it uses less digits than its factorization.

20125461032172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186346861422 (or 186346861414 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

Adding to 20125461032172 its reverse (27123016452102), we get a palindrome (47248477484274).

The spelling of 20125461032172 in words is "twenty trillion, one hundred twenty-five billion, four hundred sixty-one million, thirty-two thousand, one hundred seventy-two".