164340434201401 has 4 divisors (see below), whose sum is σ = 164465028921600. Its totient is φ = 164215839481204.

The previous prime is 164340434201399. The next prime is 164340434201429. The reversal of 164340434201401 is 104102434043461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 164340434201401 - 2¹ = 164340434201399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164340434201431) 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, 62297358121 + ... + 62297360758.

It is an arithmetic number, because the mean of its divisors is an integer number (41116257230400).

Almost surely, 2^{164340434201401} is an apocalyptic number.

It is an amenable number.

164340434201401 is a deficient number, since it is larger than the sum of its proper divisors (124594720199).

164340434201401 is a wasteful number, since it uses less digits than its factorization.

164340434201401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124594720198.

The product of its (nonzero) digits is 110592, while the sum is 37.

Adding to 164340434201401 its reverse (104102434043461), we get a palindrome (268442868244862).

The spelling of 164340434201401 in words is "one hundred sixty-four trillion, three hundred forty billion, four hundred thirty-four million, two hundred one thousand, four hundred one".