616632577 has 6 divisors (see below), whose sum is σ = 677786354. Its totient is φ = 560574960.

The previous prime is 616632571. The next prime is 616632641. The reversal of 616632577 is 775236616.

It can be written as a sum of positive squares in only one way, i.e., 399040576 + 217592001 = 19976^2 + 14751^2 .

It is a de Polignac number, because none of the positive numbers 2^k-616632577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (616632571) 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, 2547948 + ... + 2548189.

Almost surely, 2^616632577 is an apocalyptic number.

It is an amenable number.

616632577 is a deficient number, since it is larger than the sum of its proper divisors (61153777).

616632577 is a wasteful number, since it uses less digits than its factorization.

616632577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5096159 (or 5096148 counting only the distinct ones).

The product of its digits is 317520, while the sum is 43.

The square root of 616632577 is about 24832.0876488466. The cubic root of 616632577 is about 851.1553272278.

The spelling of 616632577 in words is "six hundred sixteen million, six hundred thirty-two thousand, five hundred seventy-seven".