105021161405 has 16 divisors (see below), whose sum is σ = 127063594944. Its totient is φ = 83325565440.

The previous prime is 105021161383. The next prime is 105021161437. The reversal of 105021161405 is 504161120501.

It is not a de Polignac number, because 105021161405 - 2¹⁸ = 105020899261 is a prime.

It is a super-2 number, since 2×105021161405² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1064294 + ... + 1158776.

It is an arithmetic number, because the mean of its divisors is an integer number (7941474684).

Almost surely, 2^105021161405 is an apocalyptic number.

It is an amenable number.

105021161405 is a deficient number, since it is larger than the sum of its proper divisors (22042433539).

105021161405 is a wasteful number, since it uses less digits than its factorization.

105021161405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96316.

The product of its (nonzero) digits is 1200, while the sum is 26.

Adding to 105021161405 its reverse (504161120501), we get a palindrome (609182281906).

The spelling of 105021161405 in words is "one hundred five billion, twenty-one million, one hundred sixty-one thousand, four hundred five".