164340434201515 has 128 divisors (see below), whose sum is σ = 246513306783744. Its totient is φ = 103330225152000.

The previous prime is 164340434201497. The next prime is 164340434201521. The reversal of 164340434201515 is 515102434043461.

It is not a de Polignac number, because 164340434201515 - 2¹⁵ = 164340434168747 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2176570254 + ... + 2176645756.

It is an arithmetic number, because the mean of its divisors is an integer number (1925885209248).

Almost surely, 2^{164340434201515} is an apocalyptic number.

164340434201515 is a deficient number, since it is larger than the sum of its proper divisors (82172872582229).

164340434201515 is a wasteful number, since it uses less digits than its factorization.

164340434201515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76421.

The product of its (nonzero) digits is 691200, while the sum is 43.

Adding to 164340434201515 its reverse (515102434043461), we get a palindrome (679442868244976).

The spelling of 164340434201515 in words is "one hundred sixty-four trillion, three hundred forty billion, four hundred thirty-four million, two hundred one thousand, five hundred fifteen".