11455102505 has 64 divisors (see below), whose sum is σ = 18367008768. Its totient is φ = 6645576960.

The previous prime is 11455102487. The next prime is 11455102507. The reversal of 11455102505 is 50520155411.

It is not a de Polignac number, because 11455102505 - 2¹⁰ = 11455101481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11455102507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 310154 + ... + 345116.

It is an arithmetic number, because the mean of its divisors is an integer number (286984512).

Almost surely, 2^11455102505 is an apocalyptic number.

It is an amenable number.

11455102505 is a deficient number, since it is larger than the sum of its proper divisors (6911906263).

11455102505 is a wasteful number, since it uses less digits than its factorization.

11455102505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35046.

The product of its (nonzero) digits is 5000, while the sum is 29.

Adding to 11455102505 its reverse (50520155411), we get a palindrome (61975257916).

The spelling of 11455102505 in words is "eleven billion, four hundred fifty-five million, one hundred two thousand, five hundred five".