215330130660 has 48 divisors (see below), whose sum is σ = 606534719616. Its totient is φ = 57077524992.

The previous prime is 215330130643. The next prime is 215330130689. The reversal of 215330130660 is 66031033512.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10734997 + ... + 10755036.

It is an arithmetic number, because the mean of its divisors is an integer number (12636139992).

Almost surely, 2^215330130660 is an apocalyptic number.

215330130660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215330130660 is an abundant number, since it is smaller than the sum of its proper divisors (391204588956).

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

215330130660 is a wasteful number, since it uses less digits than its factorization.

215330130660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21490212 (or 21490210 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 30.

The spelling of 215330130660 in words is "two hundred fifteen billion, three hundred thirty million, one hundred thirty thousand, six hundred sixty".