66646002264624 has 60 divisors (see below), whose sum is σ = 187633106243856. Its totient is φ = 22082308127616.

The previous prime is 66646002264619. The next prime is 66646002264631. The reversal of 66646002264624 is 42646220064666.

66646002264624 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×66646002264624² (a number of 28 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1385662959 + ... + 1385711054.

Almost surely, 2^{66646002264624} is an apocalyptic number.

It is an amenable number.

66646002264624 is an abundant number, since it is smaller than the sum of its proper divisors (120987103979232).

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

66646002264624 is a wasteful number, since it uses less digits than its factorization.

66646002264624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2771374194 (or 2771374185 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 54.

The spelling of 66646002264624 in words is "sixty-six trillion, six hundred forty-six billion, two million, two hundred sixty-four thousand, six hundred twenty-four".