2663721118220 has 24 divisors (see below), whose sum is σ = 5594924664000. Its totient is φ = 1065276958592.

The previous prime is 2663721118189. The next prime is 2663721118259. The reversal of 2663721118220 is 228111273662.

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, 13114745 + ... + 13316304.

It is an arithmetic number, because the mean of its divisors is an integer number (233121861000).

Almost surely, 2^{2663721118220} is an apocalyptic number.

2663721118220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2663721118220 is an abundant number, since it is smaller than the sum of its proper divisors (2931203545780).

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

2663721118220 is a wasteful number, since it uses less digits than its factorization.

2663721118220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26436097 (or 26436095 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The spelling of 2663721118220 in words is "two trillion, six hundred sixty-three billion, seven hundred twenty-one million, one hundred eighteen thousand, two hundred twenty".