125156442000 has 160 divisors (see below), whose sum is σ = 405762065280. Its totient is φ = 33188313600.

The previous prime is 125156441951. The next prime is 125156442001. The reversal of 125156442000 is 244651521.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (125156442001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1015734 + ... + 1132266.

It is an arithmetic number, because the mean of its divisors is an integer number (2536012908).

Almost surely, 2^125156442000 is an apocalyptic number.

125156442000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125156442000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202881032640).

125156442000 is an abundant number, since it is smaller than the sum of its proper divisors (280605623280).

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

125156442000 is a wasteful number, since it uses less digits than its factorization.

125156442000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116738 (or 116722 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The spelling of 125156442000 in words is "one hundred twenty-five billion, one hundred fifty-six million, four hundred forty-two thousand".