164511616 has 16 divisors (see below), whose sum is σ = 327738240. Its totient is φ = 82255744.

The previous prime is 164511569. The next prime is 164511619. The reversal of 164511616 is 616115461.

164511616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (16).

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164511619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 642496 + ... + 642751.

It is an arithmetic number, because the mean of its divisors is an integer number (20483640).

Almost surely, 2^164511616 is an apocalyptic number.

164511616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

164511616 is a deficient number, since it is larger than the sum of its proper divisors (163226624).

164511616 is an equidigital number, since it uses as much as digits as its factorization.

164511616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285261 (or 1285249 counting only the distinct ones).

The product of its digits is 4320, while the sum is 31.

The square root of 164511616 is about 12826.2081692135. The cubic root of 164511616 is about 547.9389705954.

The spelling of 164511616 in words is "one hundred sixty-four million, five hundred eleven thousand, six hundred sixteen".