74066815400 has 24 divisors (see below), whose sum is σ = 172205346270. Its totient is φ = 29626726080.

The previous prime is 74066815343. The next prime is 74066815421. The reversal of 74066815400 is 451866047.

It can be written as a sum of positive squares in 3 ways, for example, as 67351668484 + 6715146916 = 259522^2 + 81946^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 185166839 + ... + 185167238.

Almost surely, 2^74066815400 is an apocalyptic number.

It is an amenable number.

74066815400 is an abundant number, since it is smaller than the sum of its proper divisors (98138530870).

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

74066815400 is a wasteful number, since it uses less digits than its factorization.

74066815400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370334093 (or 370334084 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The spelling of 74066815400 in words is "seventy-four billion, sixty-six million, eight hundred fifteen thousand, four hundred".