74666960640 has 216 divisors, whose sum is σ = 259304031168. Its totient is φ = 19836887040.

The previous prime is 74666960611. The next prime is 74666960663. The reversal of 74666960640 is 4606966647.

It is a super-2 number, since 2×74666960640² (a number of 23 digits) contains 22 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 23 ways as a sum of consecutive naturals, for example, 3109962 + ... + 3133878.

Almost surely, 2^74666960640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74666960640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129652015584).

74666960640 is an abundant number, since it is smaller than the sum of its proper divisors (184637070528).

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

74666960640 is a wasteful number, since it uses less digits than its factorization.

74666960640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24215 (or 24198 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 54.

The spelling of 74666960640 in words is "seventy-four billion, six hundred sixty-six million, nine hundred sixty thousand, six hundred forty".