66670074 has 32 divisors (see below), whose sum is σ = 149063040. Its totient is φ = 22087296.

The previous prime is 66670067. The next prime is 66670103. The reversal of 66670074 is 47007666.

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, 5322 + ... + 12714.

It is an arithmetic number, because the mean of its divisors is an integer number (4658220).

Almost surely, 2^66670074 is an apocalyptic number.

66670074 is an abundant number, since it is smaller than the sum of its proper divisors (82392966).

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

66670074 is a wasteful number, since it uses less digits than its factorization.

66670074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7571 (or 7565 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 66670074 is about 8165.1744623125. The cubic root of 66670074 is about 405.4870409504.

The spelling of 66670074 in words is "sixty-six million, six hundred seventy thousand, seventy-four".