163157449063 has 4 divisors (see below), whose sum is σ = 186465656080. Its totient is φ = 139849242048.

The previous prime is 163157449043. The next prime is 163157449067. The reversal of 163157449063 is 360944751361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 360944751361 = 41 ⋅8803530521.

It is a cyclic number.

It is not a de Polignac number, because 163157449063 - 2²⁵ = 163123894631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 163157448998 and 163157449016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163157449067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11654103498 + ... + 11654103511.

It is an arithmetic number, because the mean of its divisors is an integer number (46616414020).

Almost surely, 2^163157449063 is an apocalyptic number.

163157449063 is a deficient number, since it is larger than the sum of its proper divisors (23308207017).

163157449063 is an equidigital number, since it uses as much as digits as its factorization.

163157449063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23308207016.

The product of its (nonzero) digits is 1632960, while the sum is 49.

The spelling of 163157449063 in words is "one hundred sixty-three billion, one hundred fifty-seven million, four hundred forty-nine thousand, sixty-three".