1613711664 has 30 divisors (see below), whose sum is σ = 4516151796. Its totient is φ = 537903840.

The previous prime is 1613711663. The next prime is 1613711681. The reversal of 1613711664 is 4661173161.

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

It is not an unprimeable number, because it can be changed into a prime (1613711663) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5603022 + ... + 5603309.

Almost surely, 2^1613711664 is an apocalyptic number.

It is an amenable number.

1613711664 is an abundant number, since it is smaller than the sum of its proper divisors (2902440132).

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

1613711664 is a wasteful number, since it uses less digits than its factorization.

1613711664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11206345 (or 11206336 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 1613711664 is about 40171.0301585608. The cubic root of 1613711664 is about 1172.9386920336.

The spelling of 1613711664 in words is "one billion, six hundred thirteen million, seven hundred eleven thousand, six hundred sixty-four".