6915900520220 has 48 divisors (see below), whose sum is σ = 15377926189248. Its totient is φ = 2603596231680.

The previous prime is 6915900520219. The next prime is 6915900520279. The reversal of 6915900520220 is 220250095196.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41786030 + ... + 41951210.

It is an arithmetic number, because the mean of its divisors is an integer number (320373462276).

Almost surely, 2^{6915900520220} is an apocalyptic number.

It is an amenable number.

6915900520220 is an abundant number, since it is smaller than the sum of its proper divisors (8462025669028).

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

6915900520220 is a wasteful number, since it uses less digits than its factorization.

6915900520220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288350 (or 288348 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 41.

The spelling of 6915900520220 in words is "six trillion, nine hundred fifteen billion, nine hundred million, five hundred twenty thousand, two hundred twenty".