12055561552 has 10 divisors (see below), whose sum is σ = 23357650538. Its totient is φ = 6027780768.

The previous prime is 12055561549. The next prime is 12055561597. The reversal of 12055561552 is 25516555021.

It can be written as a sum of positive squares in only one way, i.e., 12041989696 + 13571856 = 109736^2 + 3684^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 376736283 + ... + 376736314.

Almost surely, 2^12055561552 is an apocalyptic number.

It is an amenable number.

12055561552 is a deficient number, since it is larger than the sum of its proper divisors (11302088986).

12055561552 is an equidigital number, since it uses as much as digits as its factorization.

12055561552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753472605 (or 753472599 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 37.

The spelling of 12055561552 in words is "twelve billion, fifty-five million, five hundred sixty-one thousand, five hundred fifty-two".