66937364 has 24 divisors (see below), whose sum is σ = 133573608. Its totient is φ = 29076480.

The previous prime is 66937319. The next prime is 66937393. The reversal of 66937364 is 46373966.

It can be written as a sum of positive squares in 4 ways, for example, as 24964 + 66912400 = 158^2 + 8180^2 .

It is a super-2 number, since 2×66937364² = 8961221398536992, which contains 22 as substring.

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, 36977 + ... + 38744.

It is an arithmetic number, because the mean of its divisors is an integer number (5565567).

Almost surely, 2^66937364 is an apocalyptic number.

It is an amenable number.

66937364 is a deficient number, since it is larger than the sum of its proper divisors (66636244).

66937364 is a wasteful number, since it uses less digits than its factorization.

66937364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75755 (or 75753 counting only the distinct ones).

The product of its digits is 489888, while the sum is 44.

The square root of 66937364 is about 8181.5257745729. The cubic root of 66937364 is about 406.0282038533.

The spelling of 66937364 in words is "sixty-six million, nine hundred thirty-seven thousand, three hundred sixty-four".