164345615 has 8 divisors (see below), whose sum is σ = 225388320. Its totient is φ = 112694112.

The previous prime is 164345609. The next prime is 164345653. The reversal of 164345615 is 516543461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 164345615 - 2¹⁶ = 164280079 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 4695589 = 164345615 / (1 + 6 + 4 + 3 + 4 + 5 + 6 + 1 + 5).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2347760 + ... + 2347829.

It is an arithmetic number, because the mean of its divisors is an integer number (28173540).

Almost surely, 2^164345615 is an apocalyptic number.

164345615 is a deficient number, since it is larger than the sum of its proper divisors (61042705).

164345615 is an equidigital number, since it uses as much as digits as its factorization.

164345615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4695601.

The product of its digits is 43200, while the sum is 35.

The square root of 164345615 is about 12819.7353716838. The cubic root of 164345615 is about 547.7546086834.

The spelling of 164345615 in words is "one hundred sixty-four million, three hundred forty-five thousand, six hundred fifteen".