561500532158 has 8 divisors (see below), whose sum is σ = 842441841360. Its totient is φ = 280686585040.

The previous prime is 561500532157. The next prime is 561500532211. The reversal of 561500532158 is 851235005165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×561500532158² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561500532157) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 31829498 + ... + 31847133.

It is an arithmetic number, because the mean of its divisors is an integer number (105305230170).

Almost surely, 2^561500532158 is an apocalyptic number.

561500532158 is a deficient number, since it is larger than the sum of its proper divisors (280941309202).

561500532158 is a wasteful number, since it uses less digits than its factorization.

561500532158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63681042.

The product of its (nonzero) digits is 180000, while the sum is 41.

The spelling of 561500532158 in words is "five hundred sixty-one billion, five hundred million, five hundred thirty-two thousand, one hundred fifty-eight".