125200171651650 has 48 divisors (see below), whose sum is σ = 310497195595104. Its totient is φ = 33386629655680.

The previous prime is 125200171651637. The next prime is 125200171651663. The reversal of 125200171651650 is 56156171002521.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (125200171651637) and next prime (125200171651663).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81566062 + ... + 83086838.

It is an arithmetic number, because the mean of its divisors is an integer number (6468691574898).

Almost surely, 2^{125200171651650} is an apocalyptic number.

125200171651650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125200171651650 is an abundant number, since it is smaller than the sum of its proper divisors (185297023943454).

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

125200171651650 is a wasteful number, since it uses less digits than its factorization.

125200171651650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2069635 (or 2069630 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 42.

The spelling of 125200171651650 in words is "one hundred twenty-five trillion, two hundred billion, one hundred seventy-one million, six hundred fifty-one thousand, six hundred fifty".