616863800185543 has 8 divisors (see below), whose sum is σ = 626236921590912. Its totient is φ = 607495566986616.

The previous prime is 616863800185517. The next prime is 616863800185553. The reversal of 616863800185543 is 345581008368616.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 616863800185543 - 2¹⁷ = 616863800054471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616863800185553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1221797305 + ... + 1222302082.

It is an arithmetic number, because the mean of its divisors is an integer number (78279615198864).

Almost surely, 2^{616863800185543} is an apocalyptic number.

616863800185543 is a deficient number, since it is larger than the sum of its proper divisors (9373121405369).

616863800185543 is a wasteful number, since it uses less digits than its factorization.

616863800185543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2444103221.

The product of its (nonzero) digits is 99532800, while the sum is 64.

The spelling of 616863800185543 in words is "six hundred sixteen trillion, eight hundred sixty-three billion, eight hundred million, one hundred eighty-five thousand, five hundred forty-three".