66204474 has 32 divisors (see below), whose sum is σ = 159290880. Its totient is φ = 17919792.

The previous prime is 66204461. The next prime is 66204491. The reversal of 66204474 is 47440266.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40684 + ... + 42279.

It is an arithmetic number, because the mean of its divisors is an integer number (4977840).

Almost surely, 2^66204474 is an apocalyptic number.

66204474 is an abundant number, since it is smaller than the sum of its proper divisors (93086406).

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

66204474 is a wasteful number, since it uses less digits than its factorization.

66204474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82994.

The product of its (nonzero) digits is 32256, while the sum is 33.

The square root of 66204474 is about 8136.6131774836. The cubic root of 66204474 is about 404.5409094515.

The spelling of 66204474 in words is "sixty-six million, two hundred four thousand, four hundred seventy-four".