5961558366 has 24 divisors (see below), whose sum is σ = 13395107544. Its totient is φ = 1987185960.

The previous prime is 5961558353. The next prime is 5961558371. The reversal of 5961558366 is 6638551695.

It is a happy number.

5961558366 is a `hidden beast` number, since 59 + 6 + 1 + 5 + 583 + 6 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6132805 + ... + 6133776.

It is an arithmetic number, because the mean of its divisors is an integer number (558129481).

Almost surely, 2^5961558366 is an apocalyptic number.

5961558366 is an abundant number, since it is smaller than the sum of its proper divisors (7433549178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5961558366 is a wasteful number, since it uses less digits than its factorization.

5961558366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12266598 (or 12266586 counting only the distinct ones).

The product of its digits is 5832000, while the sum is 54.

The square root of 5961558366 is about 77211.1285113746. The cubic root of 5961558366 is about 1813.2315484141.

The spelling of 5961558366 in words is "five billion, nine hundred sixty-one million, five hundred fifty-eight thousand, three hundred sixty-six".