616610720622 has 32 divisors (see below), whose sum is σ = 1328115186720. Its totient is φ = 189722010240.

The previous prime is 616610720611. The next prime is 616610720623. The reversal of 616610720622 is 226027016616.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616610720623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5547004 + ... + 5657072.

It is an arithmetic number, because the mean of its divisors is an integer number (41503599585).

Almost surely, 2^616610720622 is an apocalyptic number.

616610720622 is an abundant number, since it is smaller than the sum of its proper divisors (711504466098).

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

616610720622 is a wasteful number, since it uses less digits than its factorization.

616610720622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181908.

The product of its (nonzero) digits is 72576, while the sum is 39.

The spelling of 616610720622 in words is "six hundred sixteen billion, six hundred ten million, seven hundred twenty thousand, six hundred twenty-two".