561611055010 has 64 divisors (see below), whose sum is σ = 1043331093504. Its totient is φ = 217522368000.

The previous prime is 561611054971. The next prime is 561611055029. The reversal of 561611055010 is 10550116165.

It is a super-2 number, since 2×561611055010² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84999127 + ... + 85005733.

It is an arithmetic number, because the mean of its divisors is an integer number (16302048336).

Almost surely, 2^561611055010 is an apocalyptic number.

561611055010 is a deficient number, since it is larger than the sum of its proper divisors (481720038494).

561611055010 is a wasteful number, since it uses less digits than its factorization.

561611055010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8179.

The product of its (nonzero) digits is 4500, while the sum is 31.

The spelling of 561611055010 in words is "five hundred sixty-one billion, six hundred eleven million, fifty-five thousand, ten".