616734066 has 48 divisors (see below), whose sum is σ = 1340210016. Its totient is φ = 189116928.

The previous prime is 616734059. The next prime is 616734067. The reversal of 616734066 is 660437616.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (616734067) 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, 357081 + ... + 358803.

It is an arithmetic number, because the mean of its divisors is an integer number (27921042).

Almost surely, 2^616734066 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 616734066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (670105008).

616734066 is an abundant number, since it is smaller than the sum of its proper divisors (723475950).

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

616734066 is a wasteful number, since it uses less digits than its factorization.

616734066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2107 (or 2094 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 616734066 is about 24834.1310699610. The cubic root of 616734066 is about 851.2020207087.

The spelling of 616734066 in words is "six hundred sixteen million, seven hundred thirty-four thousand, sixty-six".