74431166355 has 256 divisors, whose sum is σ = 168989184000. Its totient is φ = 30878184960.

The previous prime is 74431166323. The next prime is 74431166401. The reversal of 74431166355 is 55366113447.

74431166355 is a `hidden beast` number, since 7 + 4 + 4 + 3 + 1 + 1 + 6 + 635 + 5 = 666.

It is not a de Polignac number, because 74431166355 - 2⁵ = 74431166323 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 74431166355.

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 255 ways as a sum of consecutive naturals, for example, 36718852 + ... + 36720878.

It is an arithmetic number, because the mean of its divisors is an integer number (660114000).

Almost surely, 2^74431166355 is an apocalyptic number.

74431166355 is an abundant number, since it is smaller than the sum of its proper divisors (94558017645).

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

74431166355 is a wasteful number, since it uses less digits than its factorization.

74431166355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2136 (or 2116 counting only the distinct ones).

The product of its digits is 907200, while the sum is 45.

The spelling of 74431166355 in words is "seventy-four billion, four hundred thirty-one million, one hundred sixty-six thousand, three hundred fifty-five".