16222507777 has 8 divisors (see below), whose sum is σ = 18547814592. Its totient is φ = 13899152400.

The previous prime is 16222507643. The next prime is 16222507813. The reversal of 16222507777 is 77770522261.

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

It is a de Polignac number, because none of the positive numbers 2^k-16222507777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16222507277) 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 7 ways as a sum of consecutive naturals, for example, 469999 + ... + 503332.

It is an arithmetic number, because the mean of its divisors is an integer number (2318476824).

Almost surely, 2^16222507777 is an apocalyptic number.

It is an amenable number.

16222507777 is a deficient number, since it is larger than the sum of its proper divisors (2325306815).

16222507777 is an equidigital number, since it uses as much as digits as its factorization.

16222507777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975719.

The product of its (nonzero) digits is 576240, while the sum is 46.

The spelling of 16222507777 in words is "sixteen billion, two hundred twenty-two million, five hundred seven thousand, seven hundred seventy-seven".