66600131554410 has 48 divisors (see below), whose sum is σ = 167092050321504. Its totient is φ = 16987859638816.

The previous prime is 66600131554367. The next prime is 66600131554421. The reversal of 66600131554410 is 1445513100666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2098286952 + ... + 2098318691.

It is an arithmetic number, because the mean of its divisors is an integer number (3481084381698).

Almost surely, 2^{66600131554410} is an apocalyptic number.

66600131554410 is an abundant number, since it is smaller than the sum of its proper divisors (100491918767094).

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

66600131554410 is a wasteful number, since it uses less digits than its factorization.

66600131554410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4196605699 (or 4196605676 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 66600131554410 in words is "sixty-six trillion, six hundred billion, one hundred thirty-one million, five hundred fifty-four thousand, four hundred ten".