66101080 has 32 divisors (see below), whose sum is σ = 155196000. Its totient is φ = 25290496.

The previous prime is 66101059. The next prime is 66101107. The reversal of 66101080 is 8010166.

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, 35005 + ... + 36844.

It is an arithmetic number, because the mean of its divisors is an integer number (4849875).

Almost surely, 2^66101080 is an apocalyptic number.

It is an amenable number.

66101080 is an abundant number, since it is smaller than the sum of its proper divisors (89094920).

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

66101080 is a wasteful number, since it uses less digits than its factorization.

66101080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71883 (or 71879 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 66101080 is about 8130.2570685065. The cubic root of 66101080 is about 404.3302041749.

The spelling of 66101080 in words is "sixty-six million, one hundred one thousand, eighty".