105559051428 has 36 divisors (see below), whose sum is σ = 266940168768. Its totient is φ = 35171799600.

The previous prime is 105559051327. The next prime is 105559051441. The reversal of 105559051428 is 824150955501.

105559051428 is a `hidden beast` number, since 1 + 0 + 5 + 5 + 590 + 51 + 4 + 2 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×105559051428² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 517848 + ... + 692303.

It is an arithmetic number, because the mean of its divisors is an integer number (7415004688).

Almost surely, 2^105559051428 is an apocalyptic number.

105559051428 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

105559051428 is an abundant number, since it is smaller than the sum of its proper divisors (161381117340).

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

105559051428 is a wasteful number, since it uses less digits than its factorization.

105559051428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212584 (or 1212579 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 45.

The spelling of 105559051428 in words is "one hundred five billion, five hundred fifty-nine million, fifty-one thousand, four hundred twenty-eight".