125267521320 has 96 divisors (see below), whose sum is σ = 407233892520. Its totient is φ = 33395281920.

The previous prime is 125267521283. The next prime is 125267521321. The reversal of 125267521320 is 23125762521.

125267521320 is a `hidden beast` number, since 1 + 2 + 52 + 67 + 521 + 3 + 20 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 64417485636 + 60850035684 = 253806^2 + 246678^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (125267521321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1283860 + ... + 1377980.

Almost surely, 2^125267521320 is an apocalyptic number.

125267521320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125267521320 is an abundant number, since it is smaller than the sum of its proper divisors (281966371200).

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

125267521320 is a wasteful number, since it uses less digits than its factorization.

125267521320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97835 (or 97828 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The spelling of 125267521320 in words is "one hundred twenty-five billion, two hundred sixty-seven million, five hundred twenty-one thousand, three hundred twenty".