101880225640 has 32 divisors (see below), whose sum is σ = 229474195560. Its totient is φ = 40708768000.

The previous prime is 101880225593. The next prime is 101880225649. The reversal of 101880225640 is 46522088101.

It can be written as a sum of positive squares in 4 ways, for example, as 101810770084 + 69455556 = 319078^2 + 8334^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 101880225640.

It is not an unprimeable number, because it can be changed into a prime (101880225649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1315711 + ... + 1390990.

Almost surely, 2^101880225640 is an apocalyptic number.

101880225640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101880225640 is an abundant number, since it is smaller than the sum of its proper divisors (127593969920).

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

101880225640 is a wasteful number, since it uses less digits than its factorization.

101880225640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2707653 (or 2707649 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 37.

The spelling of 101880225640 in words is "one hundred one billion, eight hundred eighty million, two hundred twenty-five thousand, six hundred forty".