11655553755 has 16 divisors (see below), whose sum is σ = 19250463744. Its totient is φ = 6015769440.

The previous prime is 11655553747. The next prime is 11655553799. The reversal of 11655553755 is 55735555611.

It is not a de Polignac number, because 11655553755 - 2³ = 11655553747 is a prime.

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, 12532389 + ... + 12533318.

It is an arithmetic number, because the mean of its divisors is an integer number (1203153984).

Almost surely, 2^11655553755 is an apocalyptic number.

11655553755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11655553755 is a deficient number, since it is larger than the sum of its proper divisors (7594909989).

11655553755 is a wasteful number, since it uses less digits than its factorization.

11655553755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25065746.

The product of its digits is 1968750, while the sum is 48.

The spelling of 11655553755 in words is "eleven billion, six hundred fifty-five million, five hundred fifty-three thousand, seven hundred fifty-five".