11766746655 has 48 divisors (see below), whose sum is σ = 20511114624. Its totient is φ = 6240196800.

The previous prime is 11766746633. The next prime is 11766746669. The reversal of 11766746655 is 55664766711.

It is a happy number.

11766746655 is a `hidden beast` number, since 1 + 1 + 76 + 67 + 466 + 55 = 666.

It is not a de Polignac number, because 11766746655 - 2⁶ = 11766746591 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8108680 + ... + 8110130.

It is an arithmetic number, because the mean of its divisors is an integer number (427314888).

Almost surely, 2^11766746655 is an apocalyptic number.

11766746655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11766746655 is a deficient number, since it is larger than the sum of its proper divisors (8744367969).

11766746655 is a wasteful number, since it uses less digits than its factorization.

11766746655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2356 (or 2353 counting only the distinct ones).

The product of its digits is 6350400, while the sum is 54.

The spelling of 11766746655 in words is "eleven billion, seven hundred sixty-six million, seven hundred forty-six thousand, six hundred fifty-five".