164659505 has 8 divisors (see below), whose sum is σ = 197677824. Its totient is φ = 131670000.

The previous prime is 164659493. The next prime is 164659543. The reversal of 164659505 is 505956461.

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

It is not a de Polignac number, because 164659505 - 2⁴ = 164659489 is a prime.

It is a super-2 number, since 2×164659505² = 54225505173690050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8480 + ... + 20030.

It is an arithmetic number, because the mean of its divisors is an integer number (24709728).

Almost surely, 2^164659505 is an apocalyptic number.

It is an amenable number.

164659505 is a deficient number, since it is larger than the sum of its proper divisors (33018319).

164659505 is a wasteful number, since it uses less digits than its factorization.

164659505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14407.

The product of its (nonzero) digits is 162000, while the sum is 41.

The square root of 164659505 is about 12831.9719840717. The cubic root of 164659505 is about 548.1031127563.

The spelling of 164659505 in words is "one hundred sixty-four million, six hundred fifty-nine thousand, five hundred five".