125561564004 has 24 divisors (see below), whose sum is σ = 293184954720. Its totient is φ = 41824144384.

The previous prime is 125561563999. The next prime is 125561564047. The reversal of 125561564004 is 400465165521.

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 7 ways as a sum of consecutive naturals, for example, 3696174 + ... + 3729989.

It is an arithmetic number, because the mean of its divisors is an integer number (12216039780).

Almost surely, 2^125561564004 is an apocalyptic number.

It is an amenable number.

125561564004 is an abundant number, since it is smaller than the sum of its proper divisors (167623390716).

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

125561564004 is a wasteful number, since it uses less digits than its factorization.

125561564004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7427579 (or 7427577 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 39.

The spelling of 125561564004 in words is "one hundred twenty-five billion, five hundred sixty-one million, five hundred sixty-four thousand, four".