66613036 has 12 divisors (see below), whose sum is σ = 133226128. Its totient is φ = 28548432.

The previous prime is 66613013. The next prime is 66613051. The reversal of 66613036 is 63031666.

66613036 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 66612989 and 66613007.

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, 1189491 + ... + 1189546.

Almost surely, 2^66613036 is an apocalyptic number.

It is an amenable number.

66613036 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66613036 is a wasteful number, since it uses less digits than its factorization.

66613036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2379048 (or 2379046 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 66613036 is about 8161.6809543133. The cubic root of 66613036 is about 405.3713730194.

The spelling of 66613036 in words is "sixty-six million, six hundred thirteen thousand, thirty-six".