616425524616 has 128 divisors (see below), whose sum is σ = 1787165337600. Its totient is φ = 175212000000.

The previous prime is 616425524591. The next prime is 616425524647.

It is a happy number.

616425524616 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×616425524616² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 101760 + ... + 1114991.

It is an arithmetic number, because the mean of its divisors is an integer number (13962229200).

Almost surely, 2^616425524616 is an apocalyptic number.

616425524616 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 616425524616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (893582668800).

616425524616 is an abundant number, since it is smaller than the sum of its proper divisors (1170739812984).

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

616425524616 is a wasteful number, since it uses less digits than its factorization.

616425524616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1216891 (or 1216887 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 48.

The spelling of 616425524616 in words is "six hundred sixteen billion, four hundred twenty-five million, five hundred twenty-four thousand, six hundred sixteen".