616384708881 has 8 divisors (see below), whose sum is σ = 829119254880. Its totient is φ = 407286651072.

The previous prime is 616384708861. The next prime is 616384708903. The reversal of 616384708881 is 188807483616.

It is a happy number.

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

It is not a de Polignac number, because 616384708881 - 2¹⁰ = 616384707857 is a prime.

It is a super-2 number, since 2×616384708881² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (616384708811) 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, 909121651 + ... + 909122328.

It is an arithmetic number, because the mean of its divisors is an integer number (103639906860).

Almost surely, 2^616384708881 is an apocalyptic number.

It is an amenable number.

616384708881 is a deficient number, since it is larger than the sum of its proper divisors (212734545999).

616384708881 is a wasteful number, since it uses less digits than its factorization.

616384708881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1818244095.

The product of its (nonzero) digits is 12386304, while the sum is 60.

The spelling of 616384708881 in words is "six hundred sixteen billion, three hundred eighty-four million, seven hundred eight thousand, eight hundred eighty-one".