674406959616 has 240 divisors, whose sum is σ = 2097362947680. Its totient is φ = 207385436160.

The previous prime is 674406959587. The next prime is 674406959621. The reversal of 674406959616 is 616959604476.

674406959616 is a `hidden beast` number, since 6 + 7 + 4 + 4 + 0 + 6 + 9 + 5 + 9 + 616 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 180369075 + ... + 180372813.

It is an arithmetic number, because the mean of its divisors is an integer number (8739012282).

Almost surely, 2^674406959616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 674406959616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1048681473840).

674406959616 is an abundant number, since it is smaller than the sum of its proper divisors (1422955988064).

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

674406959616 is a wasteful number, since it uses less digits than its factorization.

674406959616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6787 (or 6768 counting only the distinct ones).

The product of its (nonzero) digits is 58786560, while the sum is 63.

The spelling of 674406959616 in words is "six hundred seventy-four billion, four hundred six million, nine hundred fifty-nine thousand, six hundred sixteen".