11663673385 has 32 divisors (see below), whose sum is σ = 17297989632. Its totient is φ = 7352017920.

The previous prime is 11663673383. The next prime is 11663673389. The reversal of 11663673385 is 58337636611.

It is not a de Polignac number, because 11663673385 - 2¹ = 11663673383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11663673383) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56472 + ... + 162838.

It is an arithmetic number, because the mean of its divisors is an integer number (540562176).

Almost surely, 2^11663673385 is an apocalyptic number.

It is an amenable number.

11663673385 is a deficient number, since it is larger than the sum of its proper divisors (5634316247).

11663673385 is a wasteful number, since it uses less digits than its factorization.

11663673385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106633.

The product of its digits is 1632960, while the sum is 49.

The spelling of 11663673385 in words is "eleven billion, six hundred sixty-three million, six hundred seventy-three thousand, three hundred eighty-five".