164272615 has 16 divisors (see below), whose sum is σ = 224779968. Its totient is φ = 114172416.

The previous prime is 164272607. The next prime is 164272621. The reversal of 164272615 is 516272461.

It is a cyclic number.

It is not a de Polignac number, because 164272615 - 2³ = 164272607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73227 + ... + 75436.

It is an arithmetic number, because the mean of its divisors is an integer number (14048748).

Almost surely, 2^164272615 is an apocalyptic number.

164272615 is a deficient number, since it is larger than the sum of its proper divisors (60507353).

164272615 is a wasteful number, since it uses less digits than its factorization.

164272615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148698.

The product of its digits is 20160, while the sum is 34.

The square root of 164272615 is about 12816.8878827896. The cubic root of 164272615 is about 547.6734950532.

The spelling of 164272615 in words is "one hundred sixty-four million, two hundred seventy-two thousand, six hundred fifteen".