215713663630 has 32 divisors (see below), whose sum is σ = 388894556160. Its totient is φ = 86150032800.

The previous prime is 215713663621. The next prime is 215713663667. The reversal of 215713663630 is 36366317512.

It is a super-3 number, since 3×215713663630³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18721011 + ... + 18732529.

It is an arithmetic number, because the mean of its divisors is an integer number (12152954880).

Almost surely, 2^215713663630 is an apocalyptic number.

215713663630 is a deficient number, since it is larger than the sum of its proper divisors (173180892530).

215713663630 is a wasteful number, since it uses less digits than its factorization.

215713663630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14304.

The product of its (nonzero) digits is 408240, while the sum is 43.

The spelling of 215713663630 in words is "two hundred fifteen billion, seven hundred thirteen million, six hundred sixty-three thousand, six hundred thirty".