66102404748577 has 8 divisors (see below), whose sum is σ = 66377914548480. Its totient is φ = 65827304630880.

The previous prime is 66102404748553. The next prime is 66102404748593. The reversal of 66102404748577 is 77584740420166.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66102404748577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66102404748377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102097177 + ... + 102742582.

It is an arithmetic number, because the mean of its divisors is an integer number (8297239318560).

Almost surely, 2^{66102404748577} is an apocalyptic number.

It is an amenable number.

66102404748577 is a deficient number, since it is larger than the sum of its proper divisors (275509799903).

66102404748577 is a wasteful number, since it uses less digits than its factorization.

66102404748577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204841103.

The product of its (nonzero) digits is 63221760, while the sum is 61.

The spelling of 66102404748577 in words is "sixty-six trillion, one hundred two billion, four hundred four million, seven hundred forty-eight thousand, five hundred seventy-seven".