11445668890257 has 48 divisors (see below), whose sum is σ = 18750585188160. Its totient is φ = 6175003863168.

The previous prime is 11445668890211. The next prime is 11445668890261. The reversal of 11445668890257 is 75209886654411.

It is a de Polignac number, because none of the positive numbers 2^k-11445668890257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11445668890277) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6174798 + ... + 7811495.

It is an arithmetic number, because the mean of its divisors is an integer number (390637191420).

Almost surely, 2^{11445668890257} is an apocalyptic number.

It is an amenable number.

11445668890257 is a deficient number, since it is larger than the sum of its proper divisors (7304916297903).

11445668890257 is a wasteful number, since it uses less digits than its factorization.

11445668890257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13986622 (or 13986615 counting only the distinct ones).

The product of its (nonzero) digits is 116121600, while the sum is 66.

The spelling of 11445668890257 in words is "eleven trillion, four hundred forty-five billion, six hundred sixty-eight million, eight hundred ninety thousand, two hundred fifty-seven".