215012516604 has 48 divisors (see below), whose sum is σ = 506883678336. Its totient is φ = 70931044800.

The previous prime is 215012516603. The next prime is 215012516611. The reversal of 215012516604 is 406615210512.

It is a super-3 number, since 3×215012516604³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215012516603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1228959 + ... + 1392969.

It is an arithmetic number, because the mean of its divisors is an integer number (10560076632).

Almost surely, 2^215012516604 is an apocalyptic number.

It is an amenable number.

215012516604 is an abundant number, since it is smaller than the sum of its proper divisors (291871161732).

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

215012516604 is a wasteful number, since it uses less digits than its factorization.

215012516604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165146 (or 165144 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The spelling of 215012516604 in words is "two hundred fifteen billion, twelve million, five hundred sixteen thousand, six hundred four".