20125464701251 has 32 divisors (see below), whose sum is σ = 24803167592448. Its totient is φ = 15902010391680.

The previous prime is 20125464701183. The next prime is 20125464701273. The reversal of 20125464701251 is 15210746452102.

It is not a de Polignac number, because 20125464701251 - 2⁹ = 20125464700739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20125464701051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 203820945 + ... + 203919661.

It is an arithmetic number, because the mean of its divisors is an integer number (775098987264).

Almost surely, 2^{20125464701251} is an apocalyptic number.

20125464701251 is a deficient number, since it is larger than the sum of its proper divisors (4677702891197).

20125464701251 is a wasteful number, since it uses less digits than its factorization.

20125464701251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101731.

The product of its (nonzero) digits is 134400, while the sum is 40.

The spelling of 20125464701251 in words is "twenty trillion, one hundred twenty-five billion, four hundred sixty-four million, seven hundred one thousand, two hundred fifty-one".