164054235519 has 16 divisors (see below), whose sum is σ = 243056915200. Its totient is φ = 109363368888.

The previous prime is 164054235491. The next prime is 164054235539. The reversal of 164054235519 is 915532450461.

It is a happy number.

164054235519 is a `hidden beast` number, since 1 + 6 + 40 + 54 + 2 + 3 + 551 + 9 = 666.

It is not a de Polignac number, because 164054235519 - 2¹² = 164054231423 is a prime.

It is a super-2 number, since 2×164054235519² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164054235539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 350232 + ... + 671394.

It is an arithmetic number, because the mean of its divisors is an integer number (15191057200).

Almost surely, 2^164054235519 is an apocalyptic number.

164054235519 is a deficient number, since it is larger than the sum of its proper divisors (79002679681).

164054235519 is a wasteful number, since it uses less digits than its factorization.

164054235519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340091 (or 340085 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 45.

The spelling of 164054235519 in words is "one hundred sixty-four billion, fifty-four million, two hundred thirty-five thousand, five hundred nineteen".