66570455152 has 20 divisors (see below), whose sum is σ = 129197779920. Its totient is φ = 33229092608.

The previous prime is 66570455143. The next prime is 66570455153. The reversal of 66570455152 is 25155407566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66570455153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3498652 + ... + 3517627.

It is an arithmetic number, because the mean of its divisors is an integer number (6459888996).

Almost surely, 2^66570455152 is an apocalyptic number.

It is an amenable number.

66570455152 is a deficient number, since it is larger than the sum of its proper divisors (62627324768).

66570455152 is a wasteful number, since it uses less digits than its factorization.

66570455152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7016880 (or 7016874 counting only the distinct ones).

The product of its (nonzero) digits is 1260000, while the sum is 46.

The spelling of 66570455152 in words is "sixty-six billion, five hundred seventy million, four hundred fifty-five thousand, one hundred fifty-two".