164587852801 has 4 divisors (see below), whose sum is σ = 166217435604. Its totient is φ = 162958270000.

The previous prime is 164587852799. The next prime is 164587852841. The reversal of 164587852801 is 108258785461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 108258785461 = 809 ⋅133818029.

It can be written as a sum of positive squares in 2 ways, for example, as 71088890625 + 93498962176 = 266625^2 + 305776^2 .

It is a cyclic number.

It is not a de Polignac number, because 164587852801 - 2¹ = 164587852799 is a prime.

It is a super-2 number, since 2×164587852801² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164587852841) 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, 814791250 + ... + 814791451.

It is an arithmetic number, because the mean of its divisors is an integer number (41554358901).

Almost surely, 2^164587852801 is an apocalyptic number.

It is an amenable number.

164587852801 is a deficient number, since it is larger than the sum of its proper divisors (1629582803).

164587852801 is a wasteful number, since it uses less digits than its factorization.

164587852801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1629582802.

The product of its (nonzero) digits is 4300800, while the sum is 55.

The spelling of 164587852801 in words is "one hundred sixty-four billion, five hundred eighty-seven million, eight hundred fifty-two thousand, eight hundred one".