8446366505961 has 12 divisors (see below), whose sum is σ = 12337389279540. Its totient is φ = 5567642340480.

The previous prime is 8446366505923. The next prime is 8446366506007. The reversal of 8446366505961 is 1695056636448.

8446366505961 is a `hidden beast` number, since 8 + 4 + 4 + 6 + 3 + 66 + 505 + 9 + 61 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 836961500736 + 7609405005225 = 914856^2 + 2758515^2 .

It is not a de Polignac number, because 8446366505961 - 2¹³ = 8446366497769 is a prime.

It is a super-2 number, since 2×8446366505961² (a number of 27 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (8446366505761) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5272387780 + ... + 5272389381.

It is an arithmetic number, because the mean of its divisors is an integer number (1028115773295).

Almost surely, 2^{8446366505961} is an apocalyptic number.

It is an amenable number.

8446366505961 is a deficient number, since it is larger than the sum of its proper divisors (3891022773579).

8446366505961 is a wasteful number, since it uses less digits than its factorization.

8446366505961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10544777256 (or 10544777253 counting only the distinct ones).

The product of its (nonzero) digits is 111974400, while the sum is 63.

The spelling of 8446366505961 in words is "eight trillion, four hundred forty-six billion, three hundred sixty-six million, five hundred five thousand, nine hundred sixty-one".