613455066 has 64 divisors (see below), whose sum is σ = 1577779200. Its totient is φ = 173045808.

The previous prime is 613455061. The next prime is 613455121. The reversal of 613455066 is 660554316.

It is a self number, because there is not a number n which added to its sum of digits gives 613455066.

It is not an unprimeable number, because it can be changed into a prime (613455061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19591 + ... + 40133.

It is an arithmetic number, because the mean of its divisors is an integer number (24652800).

Almost surely, 2^613455066 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 613455066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (788889600).

613455066 is an abundant number, since it is smaller than the sum of its proper divisors (964324134).

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

613455066 is a wasteful number, since it uses less digits than its factorization.

613455066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20640 (or 20634 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 613455066 is about 24768.0250726617. The cubic root of 613455066 is about 849.6908061118.

The spelling of 613455066 in words is "six hundred thirteen million, four hundred fifty-five thousand, sixty-six".