2231665464 has 32 divisors (see below), whose sum is σ = 6376187520. Its totient is φ = 637618656.

The previous prime is 2231665453. The next prime is 2231665481. The reversal of 2231665464 is 4645661322.

It is a super-3 number, since 3×2231665464³ (a number of 29 digits) contains 333 as substring.

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, 6641694 + ... + 6642029.

It is an arithmetic number, because the mean of its divisors is an integer number (199255860).

Almost surely, 2^2231665464 is an apocalyptic number.

2231665464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2231665464 is an abundant number, since it is smaller than the sum of its proper divisors (4144522056).

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

2231665464 is a wasteful number, since it uses less digits than its factorization.

2231665464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13283739 (or 13283735 counting only the distinct ones).

The product of its digits is 207360, while the sum is 39.

The square root of 2231665464 is about 47240.5066018560. The cubic root of 2231665464 is about 1306.8017203297.

The spelling of 2231665464 in words is "two billion, two hundred thirty-one million, six hundred sixty-five thousand, four hundred sixty-four".