2056188887946 has 32 divisors (see below), whose sum is σ = 4571534560320. Its totient is φ = 685062407952.

The previous prime is 2056188887899. The next prime is 2056188887969. The reversal of 2056188887946 is 6497888816502.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9162780 + ... + 9384503.

It is an arithmetic number, because the mean of its divisors is an integer number (142860455010).

Almost surely, 2^{2056188887946} is an apocalyptic number.

2056188887946 is an abundant number, since it is smaller than the sum of its proper divisors (2515345672374).

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

2056188887946 is a wasteful number, since it uses less digits than its factorization.

2056188887946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18549347 (or 18549341 counting only the distinct ones).

The product of its (nonzero) digits is 371589120, while the sum is 72.

The spelling of 2056188887946 in words is "two trillion, fifty-six billion, one hundred eighty-eight million, eight hundred eighty-seven thousand, nine hundred forty-six".