11647045185 has 64 divisors (see below), whose sum is σ = 20918974464. Its totient is φ = 5504716800.

The previous prime is 11647045181. The next prime is 11647045213. The reversal of 11647045185 is 58154074611.

It is not a de Polignac number, because 11647045185 - 2² = 11647045181 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11647045181) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 272575 + ... + 312395.

It is an arithmetic number, because the mean of its divisors is an integer number (326858976).

Almost surely, 2^11647045185 is an apocalyptic number.

11647045185 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11647045185 is a deficient number, since it is larger than the sum of its proper divisors (9271929279).

11647045185 is a wasteful number, since it uses less digits than its factorization.

11647045185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39914.

The product of its (nonzero) digits is 134400, while the sum is 42.

The spelling of 11647045185 in words is "eleven billion, six hundred forty-seven million, forty-five thousand, one hundred eighty-five".