616541632 has 56 divisors (see below), whose sum is σ = 1406973056. Its totient is φ = 262579968.

The previous prime is 616541593. The next prime is 616541663. The reversal of 616541632 is 236145616.

It is a tau number, because it is divible by the number of its divisors (56).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68803 + ... + 77245.

Almost surely, 2^616541632 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 616541632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (703486528).

616541632 is an abundant number, since it is smaller than the sum of its proper divisors (790431424).

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

616541632 is a wasteful number, since it uses less digits than its factorization.

616541632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8625 (or 8615 counting only the distinct ones).

The product of its digits is 25920, while the sum is 34.

The square root of 616541632 is about 24830.2563820835. The cubic root of 616541632 is about 851.1134805215.

The spelling of 616541632 in words is "six hundred sixteen million, five hundred forty-one thousand, six hundred thirty-two".