2154635662 has 16 divisors (see below), whose sum is σ = 3248553600. Its totient is φ = 1071796320.

The previous prime is 2154635657. The next prime is 2154635719. The reversal of 2154635662 is 2665364512.

It is a happy number.

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, 443587 + ... + 448417.

It is an arithmetic number, because the mean of its divisors is an integer number (203034600).

Almost surely, 2^2154635662 is an apocalyptic number.

2154635662 is a deficient number, since it is larger than the sum of its proper divisors (1093917938).

2154635662 is a wasteful number, since it uses less digits than its factorization.

2154635662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5931.

The product of its digits is 259200, while the sum is 40.

The square root of 2154635662 is about 46418.0531905421. The cubic root of 2154635662 is about 1291.5898236094.

The spelling of 2154635662 in words is "two billion, one hundred fifty-four million, six hundred thirty-five thousand, six hundred sixty-two".