105644463135 has 16 divisors (see below), whose sum is σ = 171411863040. Its totient is φ = 55550139680.

The previous prime is 105644463103. The next prime is 105644463161. The reversal of 105644463135 is 531364446501.

It is a happy number.

It is not a de Polignac number, because 105644463135 - 2⁵ = 105644463103 is a prime.

It is a super-2 number, since 2×105644463135² (a number of 23 digits) contains 22 as substring.

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, 49597275 + ... + 49599404.

It is an arithmetic number, because the mean of its divisors is an integer number (10713241440).

Almost surely, 2^105644463135 is an apocalyptic number.

105644463135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

105644463135 is a deficient number, since it is larger than the sum of its proper divisors (65767399905).

105644463135 is an equidigital number, since it uses as much as digits as its factorization.

105644463135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99196758.

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 105644463135 in words is "one hundred five billion, six hundred forty-four million, four hundred sixty-three thousand, one hundred thirty-five".