2664401403988 has 24 divisors (see below), whose sum is σ = 4711125863808. Its totient is φ = 1318382775456.

The previous prime is 2664401403947. The next prime is 2664401404033. The reversal of 2664401403988 is 8893041044662.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1550656 + ... + 2780887.

It is an arithmetic number, because the mean of its divisors is an integer number (196296910992).

Almost surely, 2^{2664401403988} is an apocalyptic number.

It is an amenable number.

2664401403988 is a deficient number, since it is larger than the sum of its proper divisors (2046724459820).

2664401403988 is a wasteful number, since it uses less digits than its factorization.

2664401403988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4333143 (or 4333141 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 55.

The spelling of 2664401403988 in words is "two trillion, six hundred sixty-four billion, four hundred one million, four hundred three thousand, nine hundred eighty-eight".