611516616 has 16 divisors (see below), whose sum is σ = 1528791600. Its totient is φ = 203838864.

The previous prime is 611516611. The next prime is 611516623. The reversal of 611516616 is 616615116.

It is not an unprimeable number, because it can be changed into a prime (611516611) 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, 12739906 + ... + 12739953.

It is an arithmetic number, because the mean of its divisors is an integer number (95549475).

Almost surely, 2^611516616 is an apocalyptic number.

It is an amenable number.

611516616 is an abundant number, since it is smaller than the sum of its proper divisors (917274984).

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

611516616 is a wasteful number, since it uses less digits than its factorization.

611516616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25479868 (or 25479864 counting only the distinct ones).

The product of its digits is 6480, while the sum is 33.

The square root of 611516616 is about 24728.8620037397. The cubic root of 611516616 is about 848.7948855285.

The spelling of 611516616 in words is "six hundred eleven million, five hundred sixteen thousand, six hundred sixteen".