215351295980 has 24 divisors (see below), whose sum is σ = 452267867520. Its totient is φ = 86134776320.

The previous prime is 215351295979. The next prime is 215351296007. The reversal of 215351295980 is 89592153512.

It is a happy number.

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, 44636 + ... + 657795.

It is an arithmetic number, because the mean of its divisors is an integer number (18844494480).

Almost surely, 2^215351295980 is an apocalyptic number.

215351295980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215351295980 is an abundant number, since it is smaller than the sum of its proper divisors (236916571540).

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

215351295980 is a wasteful number, since it uses less digits than its factorization.

215351295980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717769 (or 717767 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 50.

The spelling of 215351295980 in words is "two hundred fifteen billion, three hundred fifty-one million, two hundred ninety-five thousand, nine hundred eighty".