561100016156 has 12 divisors (see below), whose sum is σ = 982097004000. Its totient is φ = 280500872160.

The previous prime is 561100016131. The next prime is 561100016161. The reversal of 561100016156 is 651610001165.

It is a super-2 number, since 2×561100016156² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12258281 + ... + 12303968.

It is an arithmetic number, because the mean of its divisors is an integer number (81841417000).

Almost surely, 2^561100016156 is an apocalyptic number.

It is an amenable number.

561100016156 is a deficient number, since it is larger than the sum of its proper divisors (420996987844).

561100016156 is a wasteful number, since it uses less digits than its factorization.

561100016156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24567964 (or 24567962 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 32.

The spelling of 561100016156 in words is "five hundred sixty-one billion, one hundred million, sixteen thousand, one hundred fifty-six".