16490695275457 has 12 divisors (see below), whose sum is σ = 17858464349040. Its totient is φ = 15220751555568.

The previous prime is 16490695275451. The next prime is 16490695275497. The reversal of 16490695275457 is 75457259609461.

It is a de Polignac number, because none of the positive numbers 2^k-16490695275457 is a prime.

It is a super-2 number, since 2×16490695275457² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16490695275451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2771107 + ... + 6376552.

It is an arithmetic number, because the mean of its divisors is an integer number (1488205362420).

Almost surely, 2^{16490695275457} is an apocalyptic number.

It is an amenable number.

16490695275457 is a deficient number, since it is larger than the sum of its proper divisors (1367769073583).

16490695275457 is a wasteful number, since it uses less digits than its factorization.

16490695275457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9158352 (or 9158339 counting only the distinct ones).

The product of its (nonzero) digits is 571536000, while the sum is 70.

The spelling of 16490695275457 in words is "sixteen trillion, four hundred ninety billion, six hundred ninety-five million, two hundred seventy-five thousand, four hundred fifty-seven".