105105501045 has 16 divisors (see below), whose sum is σ = 186854224320. Its totient is φ = 56056267152.

The previous prime is 105105501031. The next prime is 105105501073. The reversal of 105105501045 is 540105501501.

105105501045 is a `hidden beast` number, since 1 + 0 + 5 + 1 + 0 + 550 + 104 + 5 = 666.

It is not a de Polignac number, because 105105501045 - 2¹³ = 105105492853 is a prime.

It is a super-2 number, since 2×105105501045² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon 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, 389279499 + ... + 389279768.

It is an arithmetic number, because the mean of its divisors is an integer number (11678389020).

Almost surely, 2^105105501045 is an apocalyptic number.

105105501045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

105105501045 is a deficient number, since it is larger than the sum of its proper divisors (81748723275).

105105501045 is an equidigital number, since it uses as much as digits as its factorization.

105105501045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778559281 (or 778559275 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 27.

The spelling of 105105501045 in words is "one hundred five billion, one hundred five million, five hundred one thousand, forty-five".