66344914988 has 24 divisors (see below), whose sum is σ = 130744233984. Its totient is φ = 29183979600.

The previous prime is 66344914963. The next prime is 66344915009. The reversal of 66344914988 is 88941944366.

66344914988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a self number, because there is not a number n which added to its sum of digits gives 66344914988.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24318620 + ... + 24321347.

It is an arithmetic number, because the mean of its divisors is an integer number (5447676416).

Almost surely, 2^66344914988 is an apocalyptic number.

It is an amenable number.

66344914988 is a deficient number, since it is larger than the sum of its proper divisors (64399318996).

66344914988 is a wasteful number, since it uses less digits than its factorization.

66344914988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48640013 (or 48640011 counting only the distinct ones).

The product of its digits is 35831808, while the sum is 62.

The spelling of 66344914988 in words is "sixty-six billion, three hundred forty-four million, nine hundred fourteen thousand, nine hundred eighty-eight".