16000715663 has 4 divisors (see below), whose sum is σ = 16001223888. Its totient is φ = 16000207440.

The previous prime is 16000715609. The next prime is 16000715677. The reversal of 16000715663 is 36651700061.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16000715663 - 2⁸ = 16000715407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16000705663) 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, 203531 + ... + 270972.

It is an arithmetic number, because the mean of its divisors is an integer number (4000305972).

Almost surely, 2^16000715663 is an apocalyptic number.

16000715663 is a deficient number, since it is larger than the sum of its proper divisors (508225).

16000715663 is an equidigital number, since it uses as much as digits as its factorization.

16000715663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508224.

The product of its (nonzero) digits is 22680, while the sum is 35.

The spelling of 16000715663 in words is "sixteen billion, seven hundred fifteen thousand, six hundred sixty-three".