164783616 has 80 divisors (see below), whose sum is σ = 445471488. Its totient is φ = 54118400.

The previous prime is 164783603. The next prime is 164783617. The reversal of 164783616 is 616387461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164783617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108301 + ... + 109811.

Almost surely, 2^164783616 is an apocalyptic number.

164783616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164783616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222735744).

164783616 is an abundant number, since it is smaller than the sum of its proper divisors (280687872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164783616 is an equidigital number, since it uses as much as digits as its factorization.

164783616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1603 (or 1587 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 164783616 is about 12836.8070796441. The cubic root of 164783616 is about 548.2407878560.

The spelling of 164783616 in words is "one hundred sixty-four million, seven hundred eighty-three thousand, six hundred sixteen".