2663499409984 has 42 divisors (see below), whose sum is σ = 6148301100630. Its totient is φ = 1141499745792.

The previous prime is 2663499409969. The next prime is 2663499409993. The reversal of 2663499409984 is 4899049943662.

It can be written as a sum of positive squares in only one way, i.e., 1671228417600 + 992270992384 = 1292760^2 + 996128^2 .

It is a super-2 number, since 2×2663499409984² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 424661949 + ... + 424668220.

Almost surely, 2^{2663499409984} is an apocalyptic number.

It is an amenable number.

2663499409984 is an abundant number, since it is smaller than the sum of its proper divisors (3484801690646).

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

2663499409984 is an equidigital number, since it uses as much as digits as its factorization.

2663499409984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849330195 (or 849330178 counting only the distinct ones).

The product of its (nonzero) digits is 725594112, while the sum is 73.

The spelling of 2663499409984 in words is "two trillion, six hundred sixty-three billion, four hundred ninety-nine million, four hundred nine thousand, nine hundred eighty-four".