561466640046 has 32 divisors (see below), whose sum is σ = 1237436323200. Its totient is φ = 168741314784.

The previous prime is 561466640041. The next prime is 561466640071. The reversal of 561466640046 is 640046664165.

It is a junction number, because it is equal to n+sod(n) for n = 561466639977 and 561466640004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561466640041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83697696 + ... + 83704403.

It is an arithmetic number, because the mean of its divisors is an integer number (38669885100).

Almost surely, 2^561466640046 is an apocalyptic number.

561466640046 is an abundant number, since it is smaller than the sum of its proper divisors (675969683154).

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

561466640046 is a wasteful number, since it uses less digits than its factorization.

561466640046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167402160.

The product of its (nonzero) digits is 2488320, while the sum is 48.

The spelling of 561466640046 in words is "five hundred sixty-one billion, four hundred sixty-six million, six hundred forty thousand, forty-six".