164206163450 has 24 divisors (see below), whose sum is σ = 349055388192. Its totient is φ = 56299255920.

The previous prime is 164206163371. The next prime is 164206163461. The reversal of 164206163450 is 54361602461.

It is a super-2 number, since 2×164206163450² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 234579884 + ... + 234580583.

It is an arithmetic number, because the mean of its divisors is an integer number (14543974508).

Almost surely, 2^164206163450 is an apocalyptic number.

164206163450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164206163450 is an abundant number, since it is smaller than the sum of its proper divisors (184849224742).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164206163450 is a wasteful number, since it uses less digits than its factorization.

164206163450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469160486 (or 469160481 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 164206163450 in words is "one hundred sixty-four billion, two hundred six million, one hundred sixty-three thousand, four hundred fifty".