66764354088 has 32 divisors (see below), whose sum is σ = 169647132960. Its totient is φ = 21889951680.

The previous prime is 66764354021. The next prime is 66764354093. The reversal of 66764354088 is 88045346766.

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, 22800570 + ... + 22803497.

It is an arithmetic number, because the mean of its divisors is an integer number (5301472905).

Almost surely, 2^66764354088 is an apocalyptic number.

It is an amenable number.

66764354088 is an abundant number, since it is smaller than the sum of its proper divisors (102882778872).

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

66764354088 is a wasteful number, since it uses less digits than its factorization.

66764354088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45604137 (or 45604133 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 57.

The spelling of 66764354088 in words is "sixty-six billion, seven hundred sixty-four million, three hundred fifty-four thousand, eighty-eight".