164386851 has 8 divisors (see below), whose sum is σ = 219244224. Its totient is φ = 109560360.

The previous prime is 164386837. The next prime is 164386883. The reversal of 164386851 is 158683461.

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

It is not a de Polignac number, because 164386851 - 2¹⁹ = 163862563 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (164386801) 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, 11640 + ... + 21546.

It is an arithmetic number, because the mean of its divisors is an integer number (27405528).

Almost surely, 2^164386851 is an apocalyptic number.

164386851 is a deficient number, since it is larger than the sum of its proper divisors (54857373).

164386851 is an equidigital number, since it uses as much as digits as its factorization.

164386851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15441.

The product of its digits is 138240, while the sum is 42.

The square root of 164386851 is about 12821.3435723406. The cubic root of 164386851 is about 547.8004172683.

The spelling of 164386851 in words is "one hundred sixty-four million, three hundred eighty-six thousand, eight hundred fifty-one".