2120664581088 has 48 divisors (see below), whose sum is σ = 5702518792656. Its totient is φ = 689647016960.

The previous prime is 2120664581071. The next prime is 2120664581153. The reversal of 2120664581088 is 8801854660212.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×2120664581088² (a number of 25 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 2120664581088.

It is a congruent number.

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, 269389431 + ... + 269397302.

It is an arithmetic number, because the mean of its divisors is an integer number (118802474847).

Almost surely, 2^{2120664581088} is an apocalyptic number.

It is an amenable number.

2120664581088 is an abundant number, since it is smaller than the sum of its proper divisors (3581854211568).

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

2120664581088 is a wasteful number, since it uses less digits than its factorization.

2120664581088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538786787 (or 538786779 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 51.

The spelling of 2120664581088 in words is "two trillion, one hundred twenty billion, six hundred sixty-four million, five hundred eighty-one thousand, eighty-eight".