2664023864 has 16 divisors (see below), whose sum is σ = 4996240920. Its totient is φ = 1331692960.

The previous prime is 2664023861. The next prime is 2664023867. The reversal of 2664023864 is 4683204662.

It is an interprime number because it is at equal distance from previous prime (2664023861) and next prime (2664023867).

It is a super-2 number, since 2×2664023864² = 14194046295922980992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2664023861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2294 + ... + 73029.

Almost surely, 2^2664023864 is an apocalyptic number.

It is an amenable number.

2664023864 is a deficient number, since it is larger than the sum of its proper divisors (2332217056).

2664023864 is a wasteful number, since it uses less digits than its factorization.

2664023864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79750 (or 79746 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 41.

The square root of 2664023864 is about 51614.1827795423. The cubic root of 2664023864 is about 1386.2642930268.

The spelling of 2664023864 in words is "two billion, six hundred sixty-four million, twenty-three thousand, eight hundred sixty-four".