12158264722 has 8 divisors (see below), whose sum is σ = 18682211772. Its totient is φ = 5930860800.

The previous prime is 12158264693. The next prime is 12158264747. The reversal of 12158264722 is 22746285121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12071197161 + 87067561 = 109869^2 + 9331^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74135679 + ... + 74135842.

Almost surely, 2^12158264722 is an apocalyptic number.

12158264722 is a deficient number, since it is larger than the sum of its proper divisors (6523947050).

12158264722 is a wasteful number, since it uses less digits than its factorization.

12158264722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148271564.

The product of its digits is 107520, while the sum is 40.

The spelling of 12158264722 in words is "twelve billion, one hundred fifty-eight million, two hundred sixty-four thousand, seven hundred twenty-two".