12522146642 has 8 divisors (see below), whose sum is σ = 18856307196. Its totient is φ = 6236710912.

The previous prime is 12522146633. The next prime is 12522146699. The reversal of 12522146642 is 24664122521.

It can be written as a sum of positive squares in 2 ways, for example, as 12440948521 + 81198121 = 111539^2 + 9011^2 .

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, 12180563 + ... + 12181590.

Almost surely, 2^12522146642 is an apocalyptic number.

12522146642 is a deficient number, since it is larger than the sum of its proper divisors (6334160554).

12522146642 is a wasteful number, since it uses less digits than its factorization.

12522146642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24362412.

The product of its digits is 46080, while the sum is 35.

The spelling of 12522146642 in words is "twelve billion, five hundred twenty-two million, one hundred forty-six thousand, six hundred forty-two".