66010110541564 has 24 divisors (see below), whose sum is σ = 132048977650688. Its totient is φ = 28283885253360.

The previous prime is 66010110541553. The next prime is 66010110541637. The reversal of 66010110541564 is 46514501101066.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256624224 + ... + 256881319.

Almost surely, 2^{66010110541564} is an apocalyptic number.

It is an amenable number.

66010110541564 is an abundant number, since it is smaller than the sum of its proper divisors (66038867109124).

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

66010110541564 is a wasteful number, since it uses less digits than its factorization.

66010110541564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513510145 (or 513510143 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 40.

The spelling of 66010110541564 in words is "sixty-six trillion, ten billion, one hundred ten million, five hundred forty-one thousand, five hundred sixty-four".