66737074 has 8 divisors (see below), whose sum is σ = 100263708. Its totient is φ = 33315840.

The previous prime is 66737071. The next prime is 66737093. The reversal of 66737074 is 47073766.

It can be written as a sum of positive squares in 2 ways, for example, as 59213025 + 7524049 = 7695^2 + 2743^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (66737071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24747 + ... + 27310.

Almost surely, 2^66737074 is an apocalyptic number.

66737074 is a deficient number, since it is larger than the sum of its proper divisors (33526634).

66737074 is a wasteful number, since it uses less digits than its factorization.

66737074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52700.

The product of its (nonzero) digits is 148176, while the sum is 40.

The square root of 66737074 is about 8169.2762225304. The cubic root of 66737074 is about 405.6228266910.

The spelling of 66737074 in words is "sixty-six million, seven hundred thirty-seven thousand, seventy-four".