66057437748 has 24 divisors (see below), whose sum is σ = 154138627552. Its totient is φ = 22018487904.

The previous prime is 66057437701. The next prime is 66057437777. The reversal of 66057437748 is 84773475066.

It is a congruent number.

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, 502086 + ... + 619842.

Almost surely, 2^66057437748 is an apocalyptic number.

It is an amenable number.

66057437748 is an abundant number, since it is smaller than the sum of its proper divisors (88081189804).

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

66057437748 is a wasteful number, since it uses less digits than its factorization.

66057437748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164511 (or 164509 counting only the distinct ones).

The product of its (nonzero) digits is 23708160, while the sum is 57.

The spelling of 66057437748 in words is "sixty-six billion, fifty-seven million, four hundred thirty-seven thousand, seven hundred forty-eight".