275666212080 has 120 divisors (see below), whose sum is σ = 1058033195232. Its totient is φ = 63009418752.

The previous prime is 275666212067. The next prime is 275666212103. The reversal of 275666212080 is 80212666572.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27342799 + ... + 27352878.

Almost surely, 2^275666212080 is an apocalyptic number.

275666212080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

275666212080 is an abundant number, since it is smaller than the sum of its proper divisors (782366983152).

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

275666212080 is a wasteful number, since it uses less digits than its factorization.

275666212080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54695703 (or 54695694 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 275666212080 in words is "two hundred seventy-five billion, six hundred sixty-six million, two hundred twelve thousand, eighty".