561116313545 has 32 divisors (see below), whose sum is σ = 728432369280. Its totient is φ = 413542402560.

The previous prime is 561116313523. The next prime is 561116313547. The reversal of 561116313545 is 545313611165.

It is not a de Polignac number, because 561116313545 - 2²⁸ = 560847878089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (561116313547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 961139 + ... + 1430391.

It is an arithmetic number, because the mean of its divisors is an integer number (22763511540).

Almost surely, 2^561116313545 is an apocalyptic number.

It is an amenable number.

561116313545 is a deficient number, since it is larger than the sum of its proper divisors (167316055735).

561116313545 is a wasteful number, since it uses less digits than its factorization.

561116313545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469625.

The product of its digits is 162000, while the sum is 41.

The spelling of 561116313545 in words is "five hundred sixty-one billion, one hundred sixteen million, three hundred thirteen thousand, five hundred forty-five".