215015004160 has 96 divisors (see below), whose sum is σ = 562811230800. Its totient is φ = 78187233280.

The previous prime is 215015004109. The next prime is 215015004161. The reversal of 215015004160 is 61400510512.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215015004161) 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, 841795 + ... + 1067074.

Almost surely, 2^215015004160 is an apocalyptic number.

215015004160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215015004160 is an abundant number, since it is smaller than the sum of its proper divisors (347796226640).

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

215015004160 is a wasteful number, since it uses less digits than its factorization.

215015004160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1908907 (or 1908887 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 215015004160 its reverse (61400510512), we get a palindrome (276415514672).

The spelling of 215015004160 in words is "two hundred fifteen billion, fifteen million, four thousand, one hundred sixty".