2153661242366 has 8 divisors (see below), whose sum is σ = 3283450746744. Its totient is φ = 1059177660120.

The previous prime is 2153661242347. The next prime is 2153661242371. The reversal of 2153661242366 is 6632421663512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2153661242366.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8826480380 + ... + 8826480623.

It is an arithmetic number, because the mean of its divisors is an integer number (410431343343).

Almost surely, 2^{2153661242366} is an apocalyptic number.

2153661242366 is a deficient number, since it is larger than the sum of its proper divisors (1129789504378).

2153661242366 is a wasteful number, since it uses less digits than its factorization.

2153661242366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17652961066.

The product of its digits is 1866240, while the sum is 47.

The spelling of 2153661242366 in words is "two trillion, one hundred fifty-three billion, six hundred sixty-one million, two hundred forty-two thousand, three hundred sixty-six".