16016772251 has 4 divisors (see below), whose sum is σ = 16024675992. Its totient is φ = 16008868512.

The previous prime is 16016772199. The next prime is 16016772271. The reversal of 16016772251 is 15227761061.

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 16016772251 - 2¹⁰ = 16016771227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16016772271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3948830 + ... + 3952883.

It is an arithmetic number, because the mean of its divisors is an integer number (4006168998).

Almost surely, 2^16016772251 is an apocalyptic number.

16016772251 is a deficient number, since it is larger than the sum of its proper divisors (7903741).

16016772251 is an equidigital number, since it uses as much as digits as its factorization.

16016772251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7903740.

The product of its (nonzero) digits is 35280, while the sum is 38.

The spelling of 16016772251 in words is "sixteen billion, sixteen million, seven hundred seventy-two thousand, two hundred fifty-one".