2121666592360 has 64 divisors (see below), whose sum is σ = 5456047605120. Its totient is φ = 727384078080.

The previous prime is 2121666592313. The next prime is 2121666592361. The reversal of 2121666592360 is 632956661212.

It is not an unprimeable number, because it can be changed into a prime (2121666592361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4531567 + ... + 4977793.

It is an arithmetic number, because the mean of its divisors is an integer number (85250743830).

Almost surely, 2^{2121666592360} is an apocalyptic number.

2121666592360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2121666592360 is an abundant number, since it is smaller than the sum of its proper divisors (3334381012760).

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

2121666592360 is a wasteful number, since it uses less digits than its factorization.

2121666592360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463226 (or 463222 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 49.

The spelling of 2121666592360 in words is "two trillion, one hundred twenty-one billion, six hundred sixty-six million, five hundred ninety-two thousand, three hundred sixty".