16022261664 has 36 divisors (see below), whose sum is σ = 45563307426. Its totient is φ = 5340753792.

The previous prime is 16022261627. The next prime is 16022261687. The reversal of 16022261664 is 46616222061.

16022261664 is a `hidden beast` number, since 16 + 0 + 2 + 22 + 616 + 6 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 15800490000 + 221771664 = 125700^2 + 14892^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27816139 + ... + 27816714.

Almost surely, 2^16022261664 is an apocalyptic number.

It is an amenable number.

16022261664 is an abundant number, since it is smaller than the sum of its proper divisors (29541045762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16022261664 is a wasteful number, since it uses less digits than its factorization.

16022261664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55632869 (or 55632858 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 16022261664 in words is "sixteen billion, twenty-two million, two hundred sixty-one thousand, six hundred sixty-four".