2277155664 has 120 divisors (see below), whose sum is σ = 7600025472. Its totient is φ = 622321920.

The previous prime is 2277155663. The next prime is 2277155689. The reversal of 2277155664 is 4665517722.

2277155664 is a `hidden beast` number, since 2 + 2 + 77 + 15 + 566 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2277155663) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25927 + ... + 72294.

Almost surely, 2^2277155664 is an apocalyptic number.

2277155664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2277155664 is an abundant number, since it is smaller than the sum of its proper divisors (5322869808).

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

2277155664 is a wasteful number, since it uses less digits than its factorization.

2277155664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98265 (or 98256 counting only the distinct ones).

The product of its digits is 705600, while the sum is 45.

The square root of 2277155664 is about 47719.5522191900. The cubic root of 2277155664 is about 1315.6213314793.

The spelling of 2277155664 in words is "two billion, two hundred seventy-seven million, one hundred fifty-five thousand, six hundred sixty-four".