2664359646 has 32 divisors (see below), whose sum is σ = 6076189728. Its totient is φ = 771578880.

The previous prime is 2664359627. The next prime is 2664359681. The reversal of 2664359646 is 6469534662.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1003335 + ... + 1005986.

It is an arithmetic number, because the mean of its divisors is an integer number (189880929).

Almost surely, 2^2664359646 is an apocalyptic number.

2664359646 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2664359646 is an abundant number, since it is smaller than the sum of its proper divisors (3411830082).

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

2664359646 is a wasteful number, since it uses less digits than its factorization.

2664359646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2009356.

The product of its digits is 5598720, while the sum is 51.

The square root of 2664359646 is about 51617.4354845337. The cubic root of 2664359646 is about 1386.3225336264.

The spelling of 2664359646 in words is "two billion, six hundred sixty-four million, three hundred fifty-nine thousand, six hundred forty-six".