75999991222 has 16 divisors (see below), whose sum is σ = 121061939760. Its totient is φ = 35681409792.

The previous prime is 75999991219. The next prime is 75999991273. The reversal of 75999991222 is 22219999957.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8845263 + ... + 8853850.

It is an arithmetic number, because the mean of its divisors is an integer number (7566371235).

Almost surely, 2^75999991222 is an apocalyptic number.

75999991222 is a deficient number, since it is larger than the sum of its proper divisors (45061948538).

75999991222 is a wasteful number, since it uses less digits than its factorization.

75999991222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17699247.

The product of its digits is 16533720, while the sum is 64.

The spelling of 75999991222 in words is "seventy-five billion, nine hundred ninety-nine million, nine hundred ninety-one thousand, two hundred twenty-two".