16315123563 has 12 divisors (see below), whose sum is σ = 24141077688. Its totient is φ = 10611462240.

The previous prime is 16315123553. The next prime is 16315123571. The reversal of 16315123563 is 36532151361.

16315123563 is a `hidden beast` number, since 1 + 63 + 15 + 1 + 23 + 563 = 666.

It is not a de Polignac number, because 16315123563 - 2¹² = 16315119467 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (16315123523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22106845 + ... + 22107582.

It is an arithmetic number, because the mean of its divisors is an integer number (2011756474).

Almost surely, 2^16315123563 is an apocalyptic number.

16315123563 is a deficient number, since it is larger than the sum of its proper divisors (7825954125).

16315123563 is a wasteful number, since it uses less digits than its factorization.

16315123563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44214474 (or 44214471 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

The spelling of 16315123563 in words is "sixteen billion, three hundred fifteen million, one hundred twenty-three thousand, five hundred sixty-three".