16253119987557 has 16 divisors (see below), whose sum is σ = 23685761198592. Its totient is φ = 9869067164160.

The previous prime is 16253119987487. The next prime is 16253119987561. The reversal of 16253119987557 is 75578991135261.

It is not a de Polignac number, because 16253119987557 - 2¹⁵ = 16253119954789 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16253119987491 and 16253119987500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16253119986557) 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, 5140137568 + ... + 5140140729.

It is an arithmetic number, because the mean of its divisors is an integer number (1480360074912).

Almost surely, 2^{16253119987557} is an apocalyptic number.

16253119987557 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

16253119987557 is a deficient number, since it is larger than the sum of its proper divisors (7432641211035).

16253119987557 is a wasteful number, since it uses less digits than its factorization.

16253119987557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10280278348.

The product of its digits is 142884000, while the sum is 69.

The spelling of 16253119987557 in words is "sixteen trillion, two hundred fifty-three billion, one hundred nineteen million, nine hundred eighty-seven thousand, five hundred fifty-seven".