561215546411516 has 24 divisors (see below), whose sum is σ = 1003024966762560. Its totient is φ = 274637001586752.

The previous prime is 561215546411489. The next prime is 561215546411519. The reversal of 561215546411516 is 615114645512165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561215546411519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163442450 + ... + 166840838.

It is an arithmetic number, because the mean of its divisors is an integer number (41792706948440).

Almost surely, 2^{561215546411516} is an apocalyptic number.

It is an amenable number.

561215546411516 is a deficient number, since it is larger than the sum of its proper divisors (441809420351044).

561215546411516 is a wasteful number, since it uses less digits than its factorization.

561215546411516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4276853 (or 4276851 counting only the distinct ones).

The product of its digits is 4320000, while the sum is 53.

The spelling of 561215546411516 in words is "five hundred sixty-one trillion, two hundred fifteen billion, five hundred forty-six million, four hundred eleven thousand, five hundred sixteen".