616968136 has 16 divisors (see below), whose sum is σ = 1161870300. Its totient is φ = 307136064.

The previous prime is 616968109. The next prime is 616968151. The reversal of 616968136 is 631869616.

It can be written as a sum of positive squares in 2 ways, for example, as 450712900 + 166255236 = 21230^2 + 12894^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166555 + ... + 170218.

Almost surely, 2^616968136 is an apocalyptic number.

It is an amenable number.

616968136 is a deficient number, since it is larger than the sum of its proper divisors (544902164).

616968136 is a wasteful number, since it uses less digits than its factorization.

616968136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337008 (or 337004 counting only the distinct ones).

The product of its digits is 279936, while the sum is 46.

The square root of 616968136 is about 24838.8432902984. The cubic root of 616968136 is about 851.3096930790.

It can be divided in two parts, 6169 and 68136, that added together give a triangular number (74305 = T₃₈₅).

The spelling of 616968136 in words is "six hundred sixteen million, nine hundred sixty-eight thousand, one hundred thirty-six".