66457061000 has 64 divisors (see below), whose sum is σ = 169646780160. Its totient is φ = 24166200000.

The previous prime is 66457060993. The next prime is 66457061071. The reversal of 66457061000 is 16075466.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3009776 + ... + 3031775.

It is an arithmetic number, because the mean of its divisors is an integer number (2650730940).

Almost surely, 2^66457061000 is an apocalyptic number.

It is an amenable number.

66457061000 is an abundant number, since it is smaller than the sum of its proper divisors (103189719160).

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

66457061000 is a wasteful number, since it uses less digits than its factorization.

66457061000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6041583 (or 6041569 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The spelling of 66457061000 in words is "sixty-six billion, four hundred fifty-seven million, sixty-one thousand".