66074557402 has 16 divisors (see below), whose sum is σ = 115904872512. Its totient is φ = 27659116800.

The previous prime is 66074557387. The next prime is 66074557421. The reversal of 66074557402 is 20475547066.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54878599 + ... + 54879802.

It is an arithmetic number, because the mean of its divisors is an integer number (7244054532).

Almost surely, 2^66074557402 is an apocalyptic number.

66074557402 is a deficient number, since it is larger than the sum of its proper divisors (49830315110).

66074557402 is a wasteful number, since it uses less digits than its factorization.

66074557402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109758453.

The product of its (nonzero) digits is 1411200, while the sum is 46.

The spelling of 66074557402 in words is "sixty-six billion, seventy-four million, five hundred fifty-seven thousand, four hundred two".