74255571664 has 80 divisors (see below), whose sum is σ = 148817725056. Its totient is φ = 35870054400.

The previous prime is 74255571659. The next prime is 74255571679. The reversal of 74255571664 is 46617555247.

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 15 ways as a sum of consecutive naturals, for example, 51316189 + ... + 51317635.

Almost surely, 2^74255571664 is an apocalyptic number.

It is an amenable number.

74255571664 is an abundant number, since it is smaller than the sum of its proper divisors (74562153392).

74255571664 is a wasteful number, since it uses less digits than its factorization.

74255571664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2204 (or 2198 counting only the distinct ones).

The product of its digits is 7056000, while the sum is 52.

The spelling of 74255571664 in words is "seventy-four billion, two hundred fifty-five million, five hundred seventy-one thousand, six hundred sixty-four".