561064366 has 8 divisors (see below), whose sum is σ = 851052960. Its totient is φ = 277380048.

The previous prime is 561064303. The next prime is 561064423. The reversal of 561064366 is 663460165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1575846 + ... + 1576201.

It is an arithmetic number, because the mean of its divisors is an integer number (106381620).

Almost surely, 2^561064366 is an apocalyptic number.

561064366 is a deficient number, since it is larger than the sum of its proper divisors (289988594).

561064366 is a wasteful number, since it uses less digits than its factorization.

561064366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3152138.

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 561064366 is about 23686.7972930069. The cubic root of 561064366 is about 824.7789385061.

The spelling of 561064366 in words is "five hundred sixty-one million, sixty-four thousand, three hundred sixty-six".