105681166828 has 24 divisors (see below), whose sum is σ = 185637744432. Its totient is φ = 52642089984.

The previous prime is 105681166823. The next prime is 105681166847. The reversal of 105681166828 is 828661186501.

It is a super-2 number, since 2×105681166828² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105681166823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1514851 + ... + 1583077.

It is an arithmetic number, because the mean of its divisors is an integer number (7734906018).

Almost surely, 2^105681166828 is an apocalyptic number.

It is an amenable number.

105681166828 is a deficient number, since it is larger than the sum of its proper divisors (79956577604).

105681166828 is a wasteful number, since it uses less digits than its factorization.

105681166828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69681 (or 69679 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 52.

The spelling of 105681166828 in words is "one hundred five billion, six hundred eighty-one million, one hundred sixty-six thousand, eight hundred twenty-eight".