16157289657 has 8 divisors (see below), whose sum is σ = 21553848576. Its totient is φ = 10766128592.

The previous prime is 16157289647. The next prime is 16157289671. The reversal of 16157289657 is 75698275161.

16157289657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16157289657 - 2⁷ = 16157289529 is a prime.

It is a super-2 number, since 2×16157289657² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16157289597 and 16157289606.

It is not an unprimeable number, because it can be changed into a prime (16157289607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1342473 + ... + 1354454.

It is an arithmetic number, because the mean of its divisors is an integer number (2694231072).

Almost surely, 2^16157289657 is an apocalyptic number.

It is an amenable number.

16157289657 is a deficient number, since it is larger than the sum of its proper divisors (5396558919).

16157289657 is a wasteful number, since it uses less digits than its factorization.

16157289657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2698927.

The product of its digits is 6350400, while the sum is 57.

The spelling of 16157289657 in words is "sixteen billion, one hundred fifty-seven million, two hundred eighty-nine thousand, six hundred fifty-seven".