164461511 has 4 divisors (see below), whose sum is σ = 173117400. Its totient is φ = 155805624.

The previous prime is 164461471. The next prime is 164461529. The reversal of 164461511 is 115164461.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 164461511 - 2⁶ = 164461447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164461711) 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, 4327916 + ... + 4327953.

It is an arithmetic number, because the mean of its divisors is an integer number (43279350).

Almost surely, 2^164461511 is an apocalyptic number.

164461511 is a deficient number, since it is larger than the sum of its proper divisors (8655889).

164461511 is an equidigital number, since it uses as much as digits as its factorization.

164461511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8655888.

The product of its digits is 2880, while the sum is 29.

The square root of 164461511 is about 12824.2547931644. The cubic root of 164461511 is about 547.8833366924.

The spelling of 164461511 in words is "one hundred sixty-four million, four hundred sixty-one thousand, five hundred eleven".