561101061005 has 32 divisors (see below), whose sum is σ = 714095740800. Its totient is φ = 421785075712.

The previous prime is 561101060983. The next prime is 561101061077. The reversal of 561101061005 is 500160101165.

It is a cyclic number.

It is not a de Polignac number, because 561101061005 - 2⁶ = 561101060941 is a prime.

It is a super-2 number, since 2×561101061005² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 239888126 + ... + 239890464.

It is an arithmetic number, because the mean of its divisors is an integer number (22315491900).

Almost surely, 2^561101061005 is an apocalyptic number.

It is an amenable number.

561101061005 is a deficient number, since it is larger than the sum of its proper divisors (152994679795).

561101061005 is a wasteful number, since it uses less digits than its factorization.

561101061005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5773.

The product of its (nonzero) digits is 900, while the sum is 26.

The spelling of 561101061005 in words is "five hundred sixty-one billion, one hundred one million, sixty-one thousand, five".