556665161212 has 12 divisors (see below), whose sum is σ = 974171905056. Its totient is φ = 278330331200.

The previous prime is 556665161207. The next prime is 556665161383. The reversal of 556665161212 is 212161566655.

It is a happy number.

556665161212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×556665161212² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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, 74628 + ... + 1057780.

It is an arithmetic number, because the mean of its divisors is an integer number (81180992088).

Almost surely, 2^556665161212 is an apocalyptic number.

It is an amenable number.

556665161212 is a deficient number, since it is larger than the sum of its proper divisors (417506743844).

556665161212 is a wasteful number, since it uses less digits than its factorization.

556665161212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124708 (or 1124706 counting only the distinct ones).

The product of its digits is 648000, while the sum is 46.

The spelling of 556665161212 in words is "five hundred fifty-six billion, six hundred sixty-five million, one hundred sixty-one thousand, two hundred twelve".