105381996155 has 4 divisors (see below), whose sum is σ = 126458395392. Its totient is φ = 84305596920.

The previous prime is 105381996121. The next prime is 105381996163. The reversal of 105381996155 is 551699183501.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 105381996155 - 2¹⁸ = 105381734011 is a prime.

It is a super-2 number, since 2×105381996155² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105381996097 and 105381996106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10538199611 + ... + 10538199620.

It is an arithmetic number, because the mean of its divisors is an integer number (31614598848).

Almost surely, 2^105381996155 is an apocalyptic number.

105381996155 is a deficient number, since it is larger than the sum of its proper divisors (21076399237).

105381996155 is an equidigital number, since it uses as much as digits as its factorization.

105381996155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21076399236.

The product of its (nonzero) digits is 1458000, while the sum is 53.

The spelling of 105381996155 in words is "one hundred five billion, three hundred eighty-one million, nine hundred ninety-six thousand, one hundred fifty-five".