66736704 has 28 divisors (see below), whose sum is σ = 176574704. Its totient is φ = 22245504.

The previous prime is 66736693. The next prime is 66736717. The reversal of 66736704 is 40763766.

It is a hoax number, since the sum of its digits (39) 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 3 ways as a sum of consecutive naturals, for example, 173602 + ... + 173985.

Almost surely, 2^66736704 is an apocalyptic number.

66736704 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

66736704 is an abundant number, since it is smaller than the sum of its proper divisors (109838000).

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

66736704 is a wasteful number, since it uses less digits than its factorization.

66736704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347602 (or 347592 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 39.

The square root of 66736704 is about 8169.2535766739. The cubic root of 66736704 is about 405.6220770791.

The spelling of 66736704 in words is "sixty-six million, seven hundred thirty-six thousand, seven hundred four".