561115564011654 has 32 divisors (see below), whose sum is σ = 1160930227680000. Its totient is φ = 180588687778464.

The previous prime is 561115564011601. The next prime is 561115564011689. The reversal of 561115564011654 is 456110465511165.

It is a super-2 number, since 2×561115564011654² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 561115564011597 and 561115564011606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183511647 + ... + 186544245.

It is an arithmetic number, because the mean of its divisors is an integer number (36279069615000).

Almost surely, 2^{561115564011654} is an apocalyptic number.

561115564011654 is an abundant number, since it is smaller than the sum of its proper divisors (599814663668346).

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

561115564011654 is a wasteful number, since it uses less digits than its factorization.

561115564011654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4096012.

The product of its (nonzero) digits is 2160000, while the sum is 51.

The spelling of 561115564011654 in words is "five hundred sixty-one trillion, one hundred fifteen billion, five hundred sixty-four million, eleven thousand, six hundred fifty-four".