105543940556 has 12 divisors (see below), whose sum is σ = 186495118992. Its totient is φ = 52259620848.

The previous prime is 105543940553. The next prime is 105543940559. The reversal of 105543940556 is 655049345501.

It is an interprime number because it is at equal distance from previous prime (105543940553) and next prime (105543940559).

It is a super-2 number, since 2×105543940556² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105543940556.

It is not an unprimeable number, because it can be changed into a prime (105543940553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128086895 + ... + 128087718.

It is an arithmetic number, because the mean of its divisors is an integer number (15541259916).

Almost surely, 2^105543940556 is an apocalyptic number.

It is an amenable number.

105543940556 is a deficient number, since it is larger than the sum of its proper divisors (80951178436).

105543940556 is a wasteful number, since it uses less digits than its factorization.

105543940556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256174720 (or 256174718 counting only the distinct ones).

The product of its (nonzero) digits is 1620000, while the sum is 47.

The spelling of 105543940556 in words is "one hundred five billion, five hundred forty-three million, nine hundred forty thousand, five hundred fifty-six".