56164427569849 has 9 divisors (see below), whose sum is σ = 56205864080877. Its totient is φ = 56123021601024.

The previous prime is 56164427569841. The next prime is 56164427569853. The reversal of 56164427569849 is 94896572446165.

The square root of 56164427569849 is 7494293.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 11125993869225 + 45038433700624 = 3335565^2 + 6711068^2 .

It is not a de Polignac number, because 56164427569849 - 2³ = 56164427569841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56164427569841) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 17903864409 + ... + 17903867545.

Almost surely, 2^{56164427569849} is an apocalyptic number.

56164427569849 is the 7494293-rd square number.

56164427569849 is the 3747147-th centered octagonal number.

It is an amenable number.

56164427569849 is a deficient number, since it is larger than the sum of its proper divisors (41436511028).

56164427569849 is an frugal number, since it uses more digits than its factorization.

56164427569849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11052 (or 5526 counting only the distinct ones).

The product of its digits is 3135283200, while the sum is 76.

The spelling of 56164427569849 in words is "fifty-six trillion, one hundred sixty-four billion, four hundred twenty-seven million, five hundred sixty-nine thousand, eight hundred forty-nine".