20125461051672 has 32 divisors (see below), whose sum is σ = 50338041338880. Its totient is φ = 6705235189280.

The previous prime is 20125461051653. The next prime is 20125461051719. The reversal of 20125461051672 is 27615016452102.

It is a congruent number.

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, 203188704 + ... + 203287727.

It is an arithmetic number, because the mean of its divisors is an integer number (1573063791840).

Almost surely, 2^{20125461051672} is an apocalyptic number.

It is an amenable number.

20125461051672 is an abundant number, since it is smaller than the sum of its proper divisors (30212580287208).

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

20125461051672 is a wasteful number, since it uses less digits than its factorization.

20125461051672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406478503 (or 406478499 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The spelling of 20125461051672 in words is "twenty trillion, one hundred twenty-five billion, four hundred sixty-one million, fifty-one thousand, six hundred seventy-two".