616143121341616 has 80 divisors (see below), whose sum is σ = 1306962294380928. Its totient is φ = 279063038131200.

The previous prime is 616143121341607. The next prime is 616143121341623.

616143121341616 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1172068111 + ... + 1172593681.

Almost surely, 2^{616143121341616} 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 616143121341616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (653481147190464).

616143121341616 is an abundant number, since it is smaller than the sum of its proper divisors (690819173039312).

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

616143121341616 is a wasteful number, since it uses less digits than its factorization.

616143121341616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549410 (or 549404 counting only the distinct ones).

The product of its digits is 373248, while the sum is 46.

The spelling of 616143121341616 in words is "six hundred sixteen trillion, one hundred forty-three billion, one hundred twenty-one million, three hundred forty-one thousand, six hundred sixteen".