164513378357 has 4 divisors (see below), whose sum is σ = 164514840576. Its totient is φ = 164511916140.

The previous prime is 164513378329. The next prime is 164513378377. The reversal of 164513378357 is 753873315461.

It is a happy number.

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 164513378357 - 2¹⁴ = 164513361973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 164513378299 and 164513378308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164513378377) 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, 546869 + ... + 792522.

It is an arithmetic number, because the mean of its divisors is an integer number (41128710144).

Almost surely, 2^164513378357 is an apocalyptic number.

It is an amenable number.

164513378357 is a deficient number, since it is larger than the sum of its proper divisors (1462219).

164513378357 is a wasteful number, since it uses less digits than its factorization.

164513378357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462218.

The product of its digits is 6350400, while the sum is 53.

The spelling of 164513378357 in words is "one hundred sixty-four billion, five hundred thirteen million, three hundred seventy-eight thousand, three hundred fifty-seven".