616577546 has 16 divisors (see below), whose sum is σ = 1022930664. Its totient is φ = 276882624.

The previous prime is 616577543. The next prime is 616577581. The reversal of 616577546 is 645775616.

It can be written as a sum of positive squares in 4 ways, for example, as 373996921 + 242580625 = 19339^2 + 15575^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 616577546.

It is not an unprimeable number, because it can be changed into a prime (616577543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319505 + ... + 321428.

Almost surely, 2^616577546 is an apocalyptic number.

616577546 is a deficient number, since it is larger than the sum of its proper divisors (406353118).

616577546 is a wasteful number, since it uses less digits than its factorization.

616577546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640985.

The product of its digits is 1058400, while the sum is 47.

The square root of 616577546 is about 24830.9795618296. The cubic root of 616577546 is about 851.1300061944.

The spelling of 616577546 in words is "six hundred sixteen million, five hundred seventy-seven thousand, five hundred forty-six".