66366066302154 has 96 divisors (see below), whose sum is σ = 145687780562688. Its totient is φ = 21832272000000.

The previous prime is 66366066302143. The next prime is 66366066302177. The reversal of 66366066302154 is 45120366066366.

It is a happy number.

66366066302154 is a `hidden beast` number, since 6 + 6 + 3 + 6 + 606 + 6 + 3 + 0 + 21 + 5 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 66366066302154.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1853731054 + ... + 1853766854.

It is an arithmetic number, because the mean of its divisors is an integer number (1517581047528).

Almost surely, 2^{66366066302154} is an apocalyptic number.

66366066302154 is an abundant number, since it is smaller than the sum of its proper divisors (79321714260534).

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

66366066302154 is a wasteful number, since it uses less digits than its factorization.

66366066302154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39804 (or 39801 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 54.

The spelling of 66366066302154 in words is "sixty-six trillion, three hundred sixty-six billion, sixty-six million, three hundred two thousand, one hundred fifty-four".