561320492460 has 192 divisors, whose sum is σ = 1996797272064. Its totient is φ = 114612019200.

The previous prime is 561320492441. The next prime is 561320492461. The reversal of 561320492460 is 64294023165.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (561320492461) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1488901 + ... + 1827420.

It is an arithmetic number, because the mean of its divisors is an integer number (10399985792).

Almost surely, 2^561320492460 is an apocalyptic number.

It is an amenable number.

561320492460 is an abundant number, since it is smaller than the sum of its proper divisors (1435476779604).

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

561320492460 is a wasteful number, since it uses less digits than its factorization.

561320492460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3316384 (or 3316382 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 561320492460 in words is "five hundred sixty-one billion, three hundred twenty million, four hundred ninety-two thousand, four hundred sixty".