164043585387 has 24 divisors (see below), whose sum is σ = 258924556800. Its totient is φ = 99254341680.

The previous prime is 164043585383. The next prime is 164043585443. The reversal of 164043585387 is 783585340461.

164043585387 is a `hidden beast` number, since 1 + 64 + 0 + 43 + 5 + 8 + 538 + 7 = 666.

It is not a de Polignac number, because 164043585387 - 2² = 164043585383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164043585383) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1323843 + ... + 1442444.

It is an arithmetic number, because the mean of its divisors is an integer number (10788523200).

Almost surely, 2^164043585387 is an apocalyptic number.

164043585387 is a deficient number, since it is larger than the sum of its proper divisors (94880971413).

164043585387 is a wasteful number, since it uses less digits than its factorization.

164043585387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2766903 (or 2766900 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 54.

The spelling of 164043585387 in words is "one hundred sixty-four billion, forty-three million, five hundred eighty-five thousand, three hundred eighty-seven".