861156223046 has 32 divisors (see below), whose sum is σ = 1527361056000. Its totient is φ = 356296766112.

The previous prime is 861156222911. The next prime is 861156223061. The reversal of 861156223046 is 640322651168.

It is a junction number, because it is equal to n+sod(n) for n = 861156222988 and 861156223006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3292145 + ... + 3544083.

It is an arithmetic number, because the mean of its divisors is an integer number (47730033000).

Almost surely, 2^861156223046 is an apocalyptic number.

861156223046 is a deficient number, since it is larger than the sum of its proper divisors (666204832954).

861156223046 is a wasteful number, since it uses less digits than its factorization.

861156223046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260396.

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 861156223046 in words is "eight hundred sixty-one billion, one hundred fifty-six million, two hundred twenty-three thousand, forty-six".