125106201640 has 32 divisors (see below), whose sum is σ = 321701662080. Its totient is φ = 42893554752.

The previous prime is 125106201599. The next prime is 125106201683. The reversal of 125106201640 is 46102601521.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 125106201599 and 125106201608.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223403652 + ... + 223404211.

It is an arithmetic number, because the mean of its divisors is an integer number (10053176940).

Almost surely, 2^125106201640 is an apocalyptic number.

125106201640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125106201640 is an abundant number, since it is smaller than the sum of its proper divisors (196595460440).

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

125106201640 is a wasteful number, since it uses less digits than its factorization.

125106201640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446807881 (or 446807877 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The spelling of 125106201640 in words is "one hundred twenty-five billion, one hundred six million, two hundred one thousand, six hundred forty".