861103066612 has 24 divisors (see below), whose sum is σ = 1518517344960. Its totient is φ = 427241330880.

The previous prime is 861103066601. The next prime is 861103066619. The reversal of 861103066612 is 216660301168.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (861103066619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13118089 + ... + 13183567.

It is an arithmetic number, because the mean of its divisors is an integer number (63271556040).

Almost surely, 2^861103066612 is an apocalyptic number.

It is an amenable number.

861103066612 is a deficient number, since it is larger than the sum of its proper divisors (657414278348).

861103066612 is a wasteful number, since it uses less digits than its factorization.

861103066612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90711 (or 90709 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The spelling of 861103066612 in words is "eight hundred sixty-one billion, one hundred three million, sixty-six thousand, six hundred twelve".