561167555612 has 12 divisors (see below), whose sum is σ = 991766423256. Its totient is φ = 277805720400.

The previous prime is 561167555569. The next prime is 561167555617. The reversal of 561167555612 is 216555761165.

It is a super-2 number, since 2×561167555612² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561167555617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 694513898 + ... + 694514705.

It is an arithmetic number, because the mean of its divisors is an integer number (82647201938).

Almost surely, 2^561167555612 is an apocalyptic number.

It is an amenable number.

561167555612 is a deficient number, since it is larger than the sum of its proper divisors (430598867644).

561167555612 is a wasteful number, since it uses less digits than its factorization.

561167555612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389028708 (or 1389028706 counting only the distinct ones).

The product of its digits is 1890000, while the sum is 50.

The spelling of 561167555612 in words is "five hundred sixty-one billion, one hundred sixty-seven million, five hundred fifty-five thousand, six hundred twelve".