164266406 has 4 divisors (see below), whose sum is σ = 246399612. Its totient is φ = 82133202.

The previous prime is 164266397. The next prime is 164266409. The reversal of 164266406 is 604662461.

164266406 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 604662461 = 13 ⋅46512497.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164266409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41066600 + ... + 41066603.

It is an arithmetic number, because the mean of its divisors is an integer number (61599903).

Almost surely, 2^164266406 is an apocalyptic number.

164266406 is a deficient number, since it is larger than the sum of its proper divisors (82133206).

164266406 is an equidigital number, since it uses as much as digits as its factorization.

164266406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82133205.

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 164266406 is about 12816.6456610144. The cubic root of 164266406 is about 547.6665948413. Note that the first 3 decimals are identical.

The spelling of 164266406 in words is "one hundred sixty-four million, two hundred sixty-six thousand, four hundred six".