2640216461320 has 32 divisors (see below), whose sum is σ = 5940548438400. Its totient is φ = 1056075668928.

The previous prime is 2640216461297. The next prime is 2640216461359. The reversal of 2640216461320 is 231646120462.

It is a super-2 number, since 2×2640216461320² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2640216461320.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4386007 + ... + 4951513.

It is an arithmetic number, because the mean of its divisors is an integer number (185642138700).

Almost surely, 2^{2640216461320} is an apocalyptic number.

2640216461320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2640216461320 is an abundant number, since it is smaller than the sum of its proper divisors (3300331977080).

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

2640216461320 is a wasteful number, since it uses less digits than its factorization.

2640216461320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682237 (or 682233 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 37.

The spelling of 2640216461320 in words is "two trillion, six hundred forty billion, two hundred sixteen million, four hundred sixty-one thousand, three hundred twenty".