616978056117 has 8 divisors (see below), whose sum is σ = 824994536800. Its totient is φ = 410140139760.

The previous prime is 616978056083. The next prime is 616978056119. The reversal of 616978056117 is 711650879616.

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 616978056117 - 2⁶ = 616978056053 is a prime.

It is a super-2 number, since 2×616978056117² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616978056119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 294639859 + ... + 294641952.

It is an arithmetic number, because the mean of its divisors is an integer number (103124317100).

Almost surely, 2^616978056117 is an apocalyptic number.

It is an amenable number.

616978056117 is a deficient number, since it is larger than the sum of its proper divisors (208016480683).

616978056117 is a wasteful number, since it uses less digits than its factorization.

616978056117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589282163.

The product of its (nonzero) digits is 3810240, while the sum is 57.

The spelling of 616978056117 in words is "six hundred sixteen billion, nine hundred seventy-eight million, fifty-six thousand, one hundred seventeen".