125537021496 has 192 divisors, whose sum is σ = 348854688000. Its totient is φ = 40772160000.

The previous prime is 125537021471. The next prime is 125537021503. The reversal of 125537021496 is 694120735521.

125537021496 is a `hidden beast` number, since 1 + 2 + 5 + 537 + 0 + 21 + 4 + 96 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 240953716 + ... + 240954236.

It is an arithmetic number, because the mean of its divisors is an integer number (1816951500).

Almost surely, 2^125537021496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125537021496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174427344000).

125537021496 is an abundant number, since it is smaller than the sum of its proper divisors (223317666504).

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

125537021496 is a wasteful number, since it uses less digits than its factorization.

125537021496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050 (or 1043 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The spelling of 125537021496 in words is "one hundred twenty-five billion, five hundred thirty-seven million, twenty-one thousand, four hundred ninety-six".