616040668 has 12 divisors (see below), whose sum is σ = 1078358512. Its totient is φ = 307938240.

The previous prime is 616040627. The next prime is 616040669. The reversal of 616040668 is 866040616.

It is a super-2 number, since 2×616040668² = 759012209259772448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616040669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1728 + ... + 35143.

Almost surely, 2^616040668 is an apocalyptic number.

It is an amenable number.

616040668 is a deficient number, since it is larger than the sum of its proper divisors (462317844).

616040668 is a wasteful number, since it uses less digits than its factorization.

616040668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41052 (or 41050 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 616040668 is about 24820.1665586676. The cubic root of 616040668 is about 850.8828971479.

The spelling of 616040668 in words is "six hundred sixteen million, forty thousand, six hundred sixty-eight".