105542631556 has 6 divisors (see below), whose sum is σ = 184699605230. Its totient is φ = 52771315776.

The previous prime is 105542631553. The next prime is 105542631559. The reversal of 105542631556 is 655136245501.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (105542631553) and next prime (105542631559).

It can be written as a sum of positive squares in only one way, i.e., 85849000000 + 19693631556 = 293000^2 + 140334^2 .

It is a super-2 number, since 2×105542631556² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105542631553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13192828941 + ... + 13192828948.

Almost surely, 2^105542631556 is an apocalyptic number.

It is an amenable number.

105542631556 is a deficient number, since it is larger than the sum of its proper divisors (79156973674).

105542631556 is a wasteful number, since it uses less digits than its factorization.

105542631556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26385657893 (or 26385657891 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 43.

The spelling of 105542631556 in words is "one hundred five billion, five hundred forty-two million, six hundred thirty-one thousand, five hundred fifty-six".