2081149468956 has 72 divisors (see below), whose sum is σ = 5359175377920. Its totient is φ = 680833704096.

The previous prime is 2081149468919. The next prime is 2081149469059. The reversal of 2081149468956 is 6598649411802.

2081149468956 is a `hidden beast` number, since 2 + 0 + 8 + 11 + 494 + 6 + 89 + 56 = 666.

It is a super-2 number, since 2×2081149468956² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2081149468893 and 2081149468902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1715976 + ... + 2665871.

It is an arithmetic number, because the mean of its divisors is an integer number (74432991360).

Almost surely, 2^{2081149468956} is an apocalyptic number.

It is an amenable number.

2081149468956 is an abundant number, since it is smaller than the sum of its proper divisors (3278025908964).

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

2081149468956 is a wasteful number, since it uses less digits than its factorization.

2081149468956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4382103 (or 4382098 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 63.

The spelling of 2081149468956 in words is "two trillion, eighty-one billion, one hundred forty-nine million, four hundred sixty-eight thousand, nine hundred fifty-six".