2231012664 has 24 divisors (see below), whose sum is σ = 6042326160. Its totient is φ = 743670864.

The previous prime is 2231012657. The next prime is 2231012669. The reversal of 2231012664 is 4662101322.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-3 number, since 3×2231012664³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231012669) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15493072 + ... + 15493215.

It is an arithmetic number, because the mean of its divisors is an integer number (251763590).

Almost surely, 2^2231012664 is an apocalyptic number.

2231012664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2231012664 is an abundant number, since it is smaller than the sum of its proper divisors (3811313496).

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

2231012664 is a wasteful number, since it uses less digits than its factorization.

2231012664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30986299 (or 30986292 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 2231012664 is about 47233.5967717895. The cubic root of 2231012664 is about 1306.6742873474.

Adding to 2231012664 its reverse (4662101322), we get a palindrome (6893113986).

The spelling of 2231012664 in words is "two billion, two hundred thirty-one million, twelve thousand, six hundred sixty-four".