215370163380 has 96 divisors (see below), whose sum is σ = 644708623104. Its totient is φ = 53528868864.

The previous prime is 215370163373. The next prime is 215370163391. The reversal of 215370163380 is 83361073512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 919927 + ... + 1130046.

It is an arithmetic number, because the mean of its divisors is an integer number (6715714824).

Almost surely, 2^215370163380 is an apocalyptic number.

215370163380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215370163380 is an abundant number, since it is smaller than the sum of its proper divisors (429338459724).

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

215370163380 is a wasteful number, since it uses less digits than its factorization.

215370163380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2050105 (or 2050103 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The spelling of 215370163380 in words is "two hundred fifteen billion, three hundred seventy million, one hundred sixty-three thousand, three hundred eighty".