66674074073700 has 72 divisors (see below), whose sum is σ = 192911211031168. Its totient is φ = 17779671054720.

The previous prime is 66674074073683. The next prime is 66674074073813. The reversal of 66674074073700 is 737047047666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92994789 + ... + 93709011.

Almost surely, 2^{66674074073700} is an apocalyptic number.

66674074073700 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66674074073700 is an abundant number, since it is smaller than the sum of its proper divisors (126237136957468).

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

66674074073700 is a wasteful number, since it uses less digits than its factorization.

66674074073700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025413 (or 1025406 counting only the distinct ones).

The product of its (nonzero) digits is 24893568, while the sum is 57.

The spelling of 66674074073700 in words is "sixty-six trillion, six hundred seventy-four billion, seventy-four million, seventy-three thousand, seven hundred".