616270660 has 12 divisors (see below), whose sum is σ = 1294168428. Its totient is φ = 246508256.

The previous prime is 616270657. The next prime is 616270663. The reversal of 616270660 is 66072616.

It is an interprime number because it is at equal distance from previous prime (616270657) and next prime (616270663).

It can be written as a sum of positive squares in 2 ways, for example, as 397763136 + 218507524 = 19944^2 + 14782^2 .

It is not an unprimeable number, because it can be changed into a prime (616270663) 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, 15406747 + ... + 15406786.

It is an arithmetic number, because the mean of its divisors is an integer number (107847369).

Almost surely, 2^616270660 is an apocalyptic number.

It is an amenable number.

616270660 is an abundant number, since it is smaller than the sum of its proper divisors (677897768).

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

616270660 is a wasteful number, since it uses less digits than its factorization.

616270660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30813542 (or 30813540 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 616270660 is about 24824.7992942541. The cubic root of 616270660 is about 850.9887732265.

The spelling of 616270660 in words is "six hundred sixteen million, two hundred seventy thousand, six hundred sixty".