806618237663952 has 120 divisors (see below), whose sum is σ = 2579968149414656. Its totient is φ = 230456088430848.

The previous prime is 806618237663941. The next prime is 806618237663983. The reversal of 806618237663952 is 259366732816608.

806618237663952 is a `hidden beast` number, since 80 + 66 + 18 + 2 + 37 + 66 + 395 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26283138 + ... + 48000414.

Almost surely, 2^{806618237663952} is an apocalyptic number.

It is an amenable number.

806618237663952 is an abundant number, since it is smaller than the sum of its proper divisors (1773349911750704).

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

806618237663952 is a wasteful number, since it uses less digits than its factorization.

806618237663952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21754145 (or 21754136 counting only the distinct ones).

The product of its (nonzero) digits is 940584960, while the sum is 72.

The spelling of 806618237663952 in words is "eight hundred six trillion, six hundred eighteen billion, two hundred thirty-seven million, six hundred sixty-three thousand, nine hundred fifty-two".