11659451655 has 16 divisors (see below), whose sum is σ = 19159316064. Its totient is φ = 6050309760.

The previous prime is 11659451651. The next prime is 11659451681. The reversal of 11659451655 is 55615495611.

It is not a de Polignac number, because 11659451655 - 2² = 11659451651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11659451651) 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 15 ways as a sum of consecutive naturals, for example, 10503456 + ... + 10504565.

It is an arithmetic number, because the mean of its divisors is an integer number (1197457254).

Almost surely, 2^11659451655 is an apocalyptic number.

11659451655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11659451655 is a deficient number, since it is larger than the sum of its proper divisors (7499864409).

11659451655 is a wasteful number, since it uses less digits than its factorization.

11659451655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21008066.

The product of its digits is 810000, while the sum is 48.

The spelling of 11659451655 in words is "eleven billion, six hundred fifty-nine million, four hundred fifty-one thousand, six hundred fifty-five".