16315043563 has 16 divisors (see below), whose sum is σ = 20085150400. Its totient is φ = 12905329536.

The previous prime is 16315043483. The next prime is 16315043567. The reversal of 16315043563 is 36534051361.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16315043563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16315043567) 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, 375913 + ... + 417061.

It is an arithmetic number, because the mean of its divisors is an integer number (1255321900).

Almost surely, 2^16315043563 is an apocalyptic number.

16315043563 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

16315043563 is a deficient number, since it is larger than the sum of its proper divisors (3770106837).

16315043563 is a wasteful number, since it uses less digits than its factorization.

16315043563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45526.

The product of its (nonzero) digits is 97200, while the sum is 37.

The spelling of 16315043563 in words is "sixteen billion, three hundred fifteen million, forty-three thousand, five hundred sixty-three".