12152775561 has 8 divisors (see below), whose sum is σ = 16232484000. Its totient is φ = 8087458752.

The previous prime is 12152775553. The next prime is 12152775587. The reversal of 12152775561 is 16557725121.

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

It is not a de Polignac number, because 12152775561 - 2³ = 12152775553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12152777561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3595936 + ... + 3599313.

It is an arithmetic number, because the mean of its divisors is an integer number (2029060500).

Almost surely, 2^12152775561 is an apocalyptic number.

It is an amenable number.

12152775561 is a deficient number, since it is larger than the sum of its proper divisors (4079708439).

12152775561 is an equidigital number, since it uses as much as digits as its factorization.

12152775561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7195815.

The product of its digits is 147000, while the sum is 42.

The spelling of 12152775561 in words is "twelve billion, one hundred fifty-two million, seven hundred seventy-five thousand, five hundred sixty-one".