66630452454666 has 64 divisors (see below), whose sum is σ = 149368439784960. Its totient is φ = 22015867728960.

The previous prime is 66630452454637. The next prime is 66630452454743. The reversal of 66630452454666 is 66645425403666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8673261 + ... + 14439056.

It is an arithmetic number, because the mean of its divisors is an integer number (2333881871640).

Almost surely, 2^{66630452454666} is an apocalyptic number.

66630452454666 is an abundant number, since it is smaller than the sum of its proper divisors (82737987330294).

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

66630452454666 is a wasteful number, since it uses less digits than its factorization.

66630452454666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23112796 (or 23112790 counting only the distinct ones).

The product of its (nonzero) digits is 447897600, while the sum is 63.

The spelling of 66630452454666 in words is "sixty-six trillion, six hundred thirty billion, four hundred fifty-two million, four hundred fifty-four thousand, six hundred sixty-six".