66577660960 has 48 divisors (see below), whose sum is σ = 158168505600. Its totient is φ = 26482276096.

The previous prime is 66577660957. The next prime is 66577660987. The reversal of 66577660960 is 6906677566.

It is a super-3 number, since 3×66577660960³ (a number of 33 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66577660895 and 66577660904.

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, 1133680 + ... + 1190959.

It is an arithmetic number, because the mean of its divisors is an integer number (3295177200).

Almost surely, 2^66577660960 is an apocalyptic number.

It is an amenable number.

66577660960 is an abundant number, since it is smaller than the sum of its proper divisors (91590844640).

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

66577660960 is a wasteful number, since it uses less digits than its factorization.

66577660960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2324833 (or 2324825 counting only the distinct ones).

The product of its (nonzero) digits is 17146080, while the sum is 58.

The spelling of 66577660960 in words is "sixty-six billion, five hundred seventy-seven million, six hundred sixty thousand, nine hundred sixty".