66380036 has 12 divisors (see below), whose sum is σ = 122998428. Its totient is φ = 31237632.

The previous prime is 66380011. The next prime is 66380051. The reversal of 66380036 is 63008366.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 59197636 + 7182400 = 7694^2 + 2680^2 .

It is a super-2 number, since 2×66380036² = 8812618358722592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66379984 and 66380011.

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, 488021 + ... + 488156.

It is an arithmetic number, because the mean of its divisors is an integer number (10249869).

Almost surely, 2^66380036 is an apocalyptic number.

It is an amenable number.

66380036 is a deficient number, since it is larger than the sum of its proper divisors (56618392).

66380036 is a wasteful number, since it uses less digits than its factorization.

66380036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976198 (or 976196 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 66380036 is about 8147.3944301230. The cubic root of 66380036 is about 404.8981830118.

The spelling of 66380036 in words is "sixty-six million, three hundred eighty thousand, thirty-six".