66057115099988 has 48 divisors (see below), whose sum is σ = 119981506176000. Its totient is φ = 31784377164288.

The previous prime is 66057115099973. The next prime is 66057115099993. The reversal of 66057115099988 is 88999051175066.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45006908 + ... + 46451436.

It is an arithmetic number, because the mean of its divisors is an integer number (2499614712000).

Almost surely, 2^{66057115099988} is an apocalyptic number.

It is an amenable number.

66057115099988 is a deficient number, since it is larger than the sum of its proper divisors (53924391076012).

66057115099988 is a wasteful number, since it uses less digits than its factorization.

66057115099988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445864 (or 1445862 counting only the distinct ones).

The product of its (nonzero) digits is 293932800, while the sum is 74.

The spelling of 66057115099988 in words is "sixty-six trillion, fifty-seven billion, one hundred fifteen million, ninety-nine thousand, nine hundred eighty-eight".