66662602224 has 40 divisors (see below), whose sum is σ = 176866098000. Its totient is φ = 21620302848.

The previous prime is 66662602219. The next prime is 66662602241. The reversal of 66662602224 is 42220626666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18765849 + ... + 18769400.

It is an arithmetic number, because the mean of its divisors is an integer number (4421652450).

Almost surely, 2^66662602224 is an apocalyptic number.

It is an amenable number.

66662602224 is an abundant number, since it is smaller than the sum of its proper divisors (110203495776).

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

66662602224 is a wasteful number, since it uses less digits than its factorization.

66662602224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37535297 (or 37535291 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 42.

The spelling of 66662602224 in words is "sixty-six billion, six hundred sixty-two million, six hundred two thousand, two hundred twenty-four".