216702748306674 has 64 divisors (see below), whose sum is σ = 551333728788480. Its totient is φ = 61805097401040.

The previous prime is 216702748306619. The next prime is 216702748306699. The reversal of 216702748306674 is 476603847207612.

216702748306674 is a `hidden beast` number, since 2 + 1 + 6 + 7 + 0 + 27 + 483 + 0 + 66 + 74 = 666.

It is a super-2 number, since 2×216702748306674² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 508923682 + ... + 509349309.

It is an arithmetic number, because the mean of its divisors is an integer number (8614589512320).

Almost surely, 2^{216702748306674} is an apocalyptic number.

216702748306674 is an abundant number, since it is smaller than the sum of its proper divisors (334630980481806).

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

216702748306674 is a wasteful number, since it uses less digits than its factorization.

216702748306674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018273572 (or 1018273566 counting only the distinct ones).

The product of its (nonzero) digits is 113799168, while the sum is 63.

The spelling of 216702748306674 in words is "two hundred sixteen trillion, seven hundred two billion, seven hundred forty-eight million, three hundred six thousand, six hundred seventy-four".