551972361064 has 24 divisors (see below), whose sum is σ = 1045727883990. Its totient is φ = 273140924928.

The previous prime is 551972361041. The next prime is 551972361067. The reversal of 551972361064 is 460163279155.

It can be written as a sum of positive squares in 3 ways, for example, as 543696820164 + 8275540900 = 737358^2 + 90970^2 .

It is a junction number, because it is equal to n+sod(n) for n = 551972360999 and 551972361017.

It is not an unprimeable number, because it can be changed into a prime (551972361067) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3591247 + ... + 3741790.

Almost surely, 2^551972361064 is an apocalyptic number.

It is an amenable number.

551972361064 is a deficient number, since it is larger than the sum of its proper divisors (493755522926).

551972361064 is an equidigital number, since it uses as much as digits as its factorization.

551972361064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7333237 (or 7333136 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 49.

The spelling of 551972361064 in words is "five hundred fifty-one billion, nine hundred seventy-two million, three hundred sixty-one thousand, sixty-four".