66372010 has 16 divisors (see below), whose sum is σ = 123589800. Its totient is φ = 25633216.

The previous prime is 66372001. The next prime is 66372011. The reversal of 66372010 is 1027366.

It can be written as a sum of positive squares in 4 ways, for example, as 46471489 + 19900521 = 6817^2 + 4461^2 .

It is a super-2 number, since 2×66372010² = 8810487422880200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66372011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114145 + ... + 114724.

Almost surely, 2^66372010 is an apocalyptic number.

66372010 is a deficient number, since it is larger than the sum of its proper divisors (57217790).

66372010 is a wasteful number, since it uses less digits than its factorization.

66372010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228905.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 66372010 is about 8146.9018651264. The cubic root of 66372010 is about 404.8818636282.

Adding to 66372010 its reverse (1027366), we get a palindrome (67399376).

The spelling of 66372010 in words is "sixty-six million, three hundred seventy-two thousand, ten".