396662431615 has 8 divisors (see below), whose sum is σ = 501047282160. Its totient is φ = 300628369152.

The previous prime is 396662431559. The next prime is 396662431699. The reversal of 396662431615 is 516134266693.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-396662431615 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2087696914 + ... + 2087697103.

It is an arithmetic number, because the mean of its divisors is an integer number (62630910270).

Almost surely, 2^396662431615 is an apocalyptic number.

396662431615 is a deficient number, since it is larger than the sum of its proper divisors (104384850545).

396662431615 is a wasteful number, since it uses less digits than its factorization.

396662431615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4175394041.

The product of its digits is 4199040, while the sum is 52.

The spelling of 396662431615 in words is "three hundred ninety-six billion, six hundred sixty-two million, four hundred thirty-one thousand, six hundred fifteen".