66371337 has 12 divisors (see below), whose sum is σ = 96180084. Its totient is φ = 44104320.

The previous prime is 66371329. The next prime is 66371359. The reversal of 66371337 is 73317366.

66371337 is a `hidden beast` number, since 6 + 637 + 13 + 3 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4968441 + 61402896 = 2229^2 + 7836^2 .

It is not a de Polignac number, because 66371337 - 2³ = 66371329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66371387) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8964 + ... + 14597.

It is an arithmetic number, because the mean of its divisors is an integer number (8015007).

Almost surely, 2^66371337 is an apocalyptic number.

It is an amenable number.

66371337 is a deficient number, since it is larger than the sum of its proper divisors (29808747).

66371337 is a wasteful number, since it uses less digits than its factorization.

66371337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23880 (or 23877 counting only the distinct ones).

The product of its digits is 47628, while the sum is 36.

The square root of 66371337 is about 8146.8605609768. The cubic root of 66371337 is about 404.8804951477.

The spelling of 66371337 in words is "sixty-six million, three hundred seventy-one thousand, three hundred thirty-seven".