2153405766 has 16 divisors (see below), whose sum is σ = 4310503488. Its totient is φ = 717186600.

The previous prime is 2153405753. The next prime is 2153405791. The reversal of 2153405766 is 6675043512.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146220 + ... + 160271.

It is an arithmetic number, because the mean of its divisors is an integer number (269406468).

Almost surely, 2^2153405766 is an apocalyptic number.

2153405766 is an abundant number, since it is smaller than the sum of its proper divisors (2157097722).

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

2153405766 is a wasteful number, since it uses less digits than its factorization.

2153405766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307667.

The product of its (nonzero) digits is 151200, while the sum is 39.

The square root of 2153405766 is about 46404.8032643174. The cubic root of 2153405766 is about 1291.3440243572.

The spelling of 2153405766 in words is "two billion, one hundred fifty-three million, four hundred five thousand, seven hundred sixty-six".