11655545642263 has 4 divisors (see below), whose sum is σ = 11684043309280. Its totient is φ = 11627047975248.

The previous prime is 11655545642261. The next prime is 11655545642341. The reversal of 11655545642263 is 36224654555611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11655545642263 - 2¹ = 11655545642261 is a prime.

It is a super-2 number, since 2×11655545642263² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11655545642261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14248832895 + ... + 14248833712.

It is an arithmetic number, because the mean of its divisors is an integer number (2921010827320).

Almost surely, 2^{11655545642263} is an apocalyptic number.

11655545642263 is a deficient number, since it is larger than the sum of its proper divisors (28497667017).

11655545642263 is an equidigital number, since it uses as much as digits as its factorization.

11655545642263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28497667016.

The product of its digits is 25920000, while the sum is 55.

The spelling of 11655545642263 in words is "eleven trillion, six hundred fifty-five billion, five hundred forty-five million, six hundred forty-two thousand, two hundred sixty-three".