16557463731357 has 12 divisors (see below), whose sum is σ = 23916392158464. Its totient is φ = 11038283466120.

The previous prime is 16557463731331. The next prime is 16557463731461. The reversal of 16557463731357 is 75313736475561.

16557463731357 is a `hidden beast` number, since 1 + 6 + 5 + 57 + 463 + 73 + 1 + 3 + 57 = 666.

It is not a de Polignac number, because 16557463731357 - 2³⁰ = 16556389989533 is a prime.

It is a super-2 number, since 2×16557463731357² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16557463731294 and 16557463731303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16557463731307) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2462482 + ... + 6259292.

It is an arithmetic number, because the mean of its divisors is an integer number (1993032679872).

Almost surely, 2^{16557463731357} is an apocalyptic number.

It is an amenable number.

16557463731357 is a deficient number, since it is larger than the sum of its proper divisors (7358928427107).

16557463731357 is a wasteful number, since it uses less digits than its factorization.

16557463731357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4281360 (or 4281357 counting only the distinct ones).

The product of its digits is 166698000, while the sum is 63.

The spelling of 16557463731357 in words is "sixteen trillion, five hundred fifty-seven billion, four hundred sixty-three million, seven hundred thirty-one thousand, three hundred fifty-seven".