66110421164516 has 96 divisors (see below), whose sum is σ = 126695706009600. Its totient is φ = 30080287733760.

The previous prime is 66110421164399. The next prime is 66110421164537. The reversal of 66110421164516 is 61546112401166.

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, 64347140 + ... + 65366468.

It is an arithmetic number, because the mean of its divisors is an integer number (1319746937600).

Almost surely, 2^{66110421164516} is an apocalyptic number.

It is an amenable number.

66110421164516 is a deficient number, since it is larger than the sum of its proper divisors (60585284845084).

66110421164516 is a wasteful number, since it uses less digits than its factorization.

66110421164516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019737 (or 1019735 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 44.

The spelling of 66110421164516 in words is "sixty-six trillion, one hundred ten billion, four hundred twenty-one million, one hundred sixty-four thousand, five hundred sixteen".