61596668 has 48 divisors (see below), whose sum is σ = 129959424. Its totient is φ = 24974400.

The previous prime is 61596643. The next prime is 61596673. The reversal of 61596668 is 86669516.

Its product of digits (466560) is a multiple of the sum of its prime divisors (1080).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64571 + ... + 65517.

It is an arithmetic number, because the mean of its divisors is an integer number (2707488).

Almost surely, 2^61596668 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 61596668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64979712).

61596668 is an abundant number, since it is smaller than the sum of its proper divisors (68362756).

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

61596668 is a wasteful number, since it uses less digits than its factorization.

61596668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082 (or 1080 counting only the distinct ones).

The product of its digits is 466560, while the sum is 47.

The square root of 61596668 is about 7848.3544772137. The cubic root of 61596668 is about 394.9290434954.

The spelling of 61596668 in words is "sixty-one million, five hundred ninety-six thousand, six hundred sixty-eight".