16105216664 has 32 divisors (see below), whose sum is σ = 30415491840. Its totient is φ = 7994484000.

The previous prime is 16105216661. The next prime is 16105216669. The reversal of 16105216664 is 46661250161.

It is a happy number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16105216661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2861357 + ... + 2866979.

It is an arithmetic number, because the mean of its divisors is an integer number (950484120).

Almost surely, 2^16105216664 is an apocalyptic number.

It is an amenable number.

16105216664 is a deficient number, since it is larger than the sum of its proper divisors (14310275176).

16105216664 is a wasteful number, since it uses less digits than its factorization.

16105216664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8151 (or 8147 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 16105216664 in words is "sixteen billion, one hundred five million, two hundred sixteen thousand, six hundred sixty-four".