215271370480 has 20 divisors (see below), whose sum is σ = 500505936552. Its totient is φ = 86108548160.

The previous prime is 215271370477. The next prime is 215271370493. The reversal of 215271370480 is 84073172512.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1345445986 + ... + 1345446145.

Almost surely, 2^215271370480 is an apocalyptic number.

215271370480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215271370480 is an abundant number, since it is smaller than the sum of its proper divisors (285234566072).

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

215271370480 is a wasteful number, since it uses less digits than its factorization.

215271370480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2690892144 (or 2690892138 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 40.

The spelling of 215271370480 in words is "two hundred fifteen billion, two hundred seventy-one million, three hundred seventy thousand, four hundred eighty".