164216541893 has 8 divisors (see below), whose sum is σ = 169529268480. Its totient is φ = 158904779040.

The previous prime is 164216541883. The next prime is 164216541901. The reversal of 164216541893 is 398145612461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 164216541893 - 2¹⁸ = 164216279749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164216541883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113678 + ... + 584256.

It is an arithmetic number, because the mean of its divisors is an integer number (21191158560).

Almost surely, 2^164216541893 is an apocalyptic number.

It is an amenable number.

164216541893 is a deficient number, since it is larger than the sum of its proper divisors (5312726587).

164216541893 is a wasteful number, since it uses less digits than its factorization.

164216541893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481867.

The product of its digits is 1244160, while the sum is 50.

The spelling of 164216541893 in words is "one hundred sixty-four billion, two hundred sixteen million, five hundred forty-one thousand, eight hundred ninety-three".