66673374 has 16 divisors (see below), whose sum is σ = 137648640. Its totient is φ = 21507480.

The previous prime is 66673361. The next prime is 66673403. The reversal of 66673374 is 47337666.

It is a congruent number.

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, 179044 + ... + 179415.

It is an arithmetic number, because the mean of its divisors is an integer number (8603040).

Almost surely, 2^66673374 is an apocalyptic number.

66673374 is an abundant number, since it is smaller than the sum of its proper divisors (70975266).

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

66673374 is a wasteful number, since it uses less digits than its factorization.

66673374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358495.

The product of its digits is 381024, while the sum is 42.

The square root of 66673374 is about 8165.3765375517. The cubic root of 66673374 is about 405.4937310343.

The spelling of 66673374 in words is "sixty-six million, six hundred seventy-three thousand, three hundred seventy-four".