66101210166 has 32 divisors (see below), whose sum is σ = 133609432320. Its totient is φ = 21799630944.

The previous prime is 66101210113. The next prime is 66101210171.

66101210166 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 626545 + ... + 724403.

It is an arithmetic number, because the mean of its divisors is an integer number (4175294760).

Almost surely, 2^66101210166 is an apocalyptic number.

66101210166 is an abundant number, since it is smaller than the sum of its proper divisors (67508222154).

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

66101210166 is a wasteful number, since it uses less digits than its factorization.

66101210166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99060.

The product of its (nonzero) digits is 2592, while the sum is 30.

The spelling of 66101210166 in words is "sixty-six billion, one hundred one million, two hundred ten thousand, one hundred sixty-six".