16622442667251 has 56 divisors (see below), whose sum is σ = 25844345427680. Its totient is φ = 10677442363776.

The previous prime is 16622442667153. The next prime is 16622442667273. The reversal of 16622442667251 is 15276624422661.

16622442667251 is a `hidden beast` number, since 1 + 6 + 6 + 22 + 442 + 66 + 72 + 51 = 666.

It is not a de Polignac number, because 16622442667251 - 2¹⁴ = 16622442650867 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16622422667251) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 213346 + ... + 5769783.

Almost surely, 2^{16622442667251} is an apocalyptic number.

16622442667251 is a deficient number, since it is larger than the sum of its proper divisors (9221902760429).

16622442667251 is an equidigital number, since it uses as much as digits as its factorization.

16622442667251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5983287 (or 5983272 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 54.

The spelling of 16622442667251 in words is "sixteen trillion, six hundred twenty-two billion, four hundred forty-two million, six hundred sixty-seven thousand, two hundred fifty-one".