125885550864 has 20 divisors (see below), whose sum is σ = 325204339856. Its totient is φ = 41961850272.

The previous prime is 125885550829. The next prime is 125885550877. The reversal of 125885550864 is 468055588521.

It is a super-2 number, since 2×125885550864² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1311307774 + ... + 1311307869.

Almost surely, 2^125885550864 is an apocalyptic number.

It is an amenable number.

125885550864 is an abundant number, since it is smaller than the sum of its proper divisors (199318788992).

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

125885550864 is a wasteful number, since it uses less digits than its factorization.

125885550864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2622615654 (or 2622615648 counting only the distinct ones).

The product of its (nonzero) digits is 15360000, while the sum is 57.

The spelling of 125885550864 in words is "one hundred twenty-five billion, eight hundred eighty-five million, five hundred fifty thousand, eight hundred sixty-four".