164502050563 has 4 divisors (see below), whose sum is σ = 168002094240. Its totient is φ = 161002006888.

The previous prime is 164502050533. The next prime is 164502050593. The reversal of 164502050563 is 365050205461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 365050205461 = 137849 ⋅2648189.

It is an interprime number because it is at equal distance from previous prime (164502050533) and next prime (164502050593).

It is a cyclic number.

It is not a de Polignac number, because 164502050563 - 2⁹ = 164502050051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164502050533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1750021768 + ... + 1750021861.

It is an arithmetic number, because the mean of its divisors is an integer number (42000523560).

Almost surely, 2^164502050563 is an apocalyptic number.

164502050563 is a deficient number, since it is larger than the sum of its proper divisors (3500043677).

164502050563 is an equidigital number, since it uses as much as digits as its factorization.

164502050563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3500043676.

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 164502050563 in words is "one hundred sixty-four billion, five hundred two million, fifty thousand, five hundred sixty-three".