105555555402 has 96 divisors (see below), whose sum is σ = 250487475840. Its totient is φ = 29540649600.

The previous prime is 105555555397. The next prime is 105555555403. The reversal of 105555555402 is 204555555501.

It is a super-2 number, since 2×105555555402² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105555555403) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 375252 + ... + 593232.

It is an arithmetic number, because the mean of its divisors is an integer number (2609244540).

Almost surely, 2^105555555402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 105555555402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125243737920).

105555555402 is an abundant number, since it is smaller than the sum of its proper divisors (144931920438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105555555402 is a wasteful number, since it uses less digits than its factorization.

105555555402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218060 (or 218049 counting only the distinct ones).

The product of its (nonzero) digits is 625000, while the sum is 42.

Subtracting 105555555402 from its reverse (204555555501), we obtain a palindrome (99000000099).

The spelling of 105555555402 in words is "one hundred five billion, five hundred fifty-five million, five hundred fifty-five thousand, four hundred two".