16257491093527 has 16 divisors (see below), whose sum is σ = 17169109816320. Its totient is φ = 15362944977952.

The previous prime is 16257491093521. The next prime is 16257491093531. The reversal of 16257491093527 is 72539019475261.

It is a cyclic number.

It is not a de Polignac number, because 16257491093527 - 2²³ = 16257482704919 is a prime.

It is a super-2 number, since 2×16257491093527² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16257491093521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140423538 + ... + 140539264.

It is an arithmetic number, because the mean of its divisors is an integer number (1073069363520).

Almost surely, 2^{16257491093527} is an apocalyptic number.

16257491093527 is a deficient number, since it is larger than the sum of its proper divisors (911618722793).

16257491093527 is a wasteful number, since it uses less digits than its factorization.

16257491093527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189422.

The product of its (nonzero) digits is 28576800, while the sum is 61.

The spelling of 16257491093527 in words is "sixteen trillion, two hundred fifty-seven billion, four hundred ninety-one million, ninety-three thousand, five hundred twenty-seven".