16123025665 has 8 divisors (see below), whose sum is σ = 19401526080. Its totient is φ = 12862490352.

The previous prime is 16123025647. The next prime is 16123025671. The reversal of 16123025665 is 56652032161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16123025665 - 2¹¹ = 16123023617 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4489299 + ... + 4492888.

It is an arithmetic number, because the mean of its divisors is an integer number (2425190760).

Almost surely, 2^16123025665 is an apocalyptic number.

It is an amenable number.

16123025665 is a deficient number, since it is larger than the sum of its proper divisors (3278500415).

16123025665 is an equidigital number, since it uses as much as digits as its factorization.

16123025665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8982551.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 16123025665 in words is "sixteen billion, one hundred twenty-three million, twenty-five thousand, six hundred sixty-five".