15849997163 has 32 divisors (see below), whose sum is σ = 22401200640. Its totient is φ = 10800552960.

The previous prime is 15849997157. The next prime is 15849997169. The reversal of 15849997163 is 36179994851.

It is an interprime number because it is at equal distance from previous prime (15849997157) and next prime (15849997169).

It is a cyclic number.

It is not a de Polignac number, because 15849997163 - 2¹⁸ = 15849735019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15849997096 and 15849997105.

It is not an unprimeable number, because it can be changed into a prime (15849997169) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 397670 + ... + 435707.

It is an arithmetic number, because the mean of its divisors is an integer number (700037520).

Almost surely, 2^15849997163 is an apocalyptic number.

15849997163 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

15849997163 is a deficient number, since it is larger than the sum of its proper divisors (6551203477).

15849997163 is a wasteful number, since it uses less digits than its factorization.

15849997163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833427.

The product of its digits is 14696640, while the sum is 62.

The spelling of 15849997163 in words is "fifteen billion, eight hundred forty-nine million, nine hundred ninety-seven thousand, one hundred sixty-three".