1613446164 has 72 divisors (see below), whose sum is σ = 4459815360. Its totient is φ = 487756800.

The previous prime is 1613446111. The next prime is 1613446169. The reversal of 1613446164 is 4616443161.

1613446164 is a `hidden beast` number, since 1 + 6 + 1 + 34 + 4 + 616 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1613446169) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 169204 + ... + 178484.

It is an arithmetic number, because the mean of its divisors is an integer number (61941880).

Almost surely, 2^1613446164 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1613446164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2229907680).

1613446164 is an abundant number, since it is smaller than the sum of its proper divisors (2846369196).

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

1613446164 is a wasteful number, since it uses less digits than its factorization.

1613446164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9741 (or 9736 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 1613446164 is about 40167.7254023675. The cubic root of 1613446164 is about 1172.8743616021.

The spelling of 1613446164 in words is "one billion, six hundred thirteen million, four hundred forty-six thousand, one hundred sixty-four".