12057231556 has 6 divisors (see below), whose sum is σ = 21100155230. Its totient is φ = 6028615776.

The previous prime is 12057231541. The next prime is 12057231577. The reversal of 12057231556 is 65513275021.

It can be written as a sum of positive squares in only one way, i.e., 7502331456 + 4554900100 = 86616^2 + 67490^2 .

It is a super-2 number, since 2×12057231556² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1507153941 + ... + 1507153948.

Almost surely, 2^12057231556 is an apocalyptic number.

It is an amenable number.

12057231556 is a deficient number, since it is larger than the sum of its proper divisors (9042923674).

12057231556 is a wasteful number, since it uses less digits than its factorization.

12057231556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3014307893 (or 3014307891 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 37.

The spelling of 12057231556 in words is "twelve billion, fifty-seven million, two hundred thirty-one thousand, five hundred fifty-six".