561620016452 has 48 divisors (see below), whose sum is σ = 1156673250432. Its totient is φ = 235731924480.

The previous prime is 561620016403. The next prime is 561620016497. The reversal of 561620016452 is 254610026165.

It is a super-3 number, since 3×561620016452³ (a number of 36 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7043648 + ... + 7122935.

It is an arithmetic number, because the mean of its divisors is an integer number (24097359384).

Almost surely, 2^561620016452 is an apocalyptic number.

It is an amenable number.

561620016452 is an abundant number, since it is smaller than the sum of its proper divisors (595053233980).

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

561620016452 is a wasteful number, since it uses less digits than its factorization.

561620016452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14166668 (or 14166666 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 561620016452 in words is "five hundred sixty-one billion, six hundred twenty million, sixteen thousand, four hundred fifty-two".