105100056505 has 16 divisors (see below), whose sum is σ = 136380153600. Its totient is φ = 77450451712.

The previous prime is 105100056487. The next prime is 105100056511. The reversal of 105100056505 is 505650001501.

It is a cyclic number.

It is not a de Polignac number, because 105100056505 - 2¹⁵ = 105100023737 is a prime.

It is a super-2 number, since 2×105100056505² (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 15 ways as a sum of consecutive naturals, for example, 13149955 + ... + 13157944.

It is an arithmetic number, because the mean of its divisors is an integer number (8523759600).

Almost surely, 2^105100056505 is an apocalyptic number.

It is an amenable number.

105100056505 is a deficient number, since it is larger than the sum of its proper divisors (31280097095).

105100056505 is a wasteful number, since it uses less digits than its factorization.

105100056505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26307968.

The product of its (nonzero) digits is 3750, while the sum is 28.

The spelling of 105100056505 in words is "one hundred five billion, one hundred million, fifty-six thousand, five hundred five".