616656554027 has 2 divisors, whose sum is σ = 616656554028. Its totient is φ = 616656554026.

The previous prime is 616656553949. The next prime is 616656554051. The reversal of 616656554027 is 720455656616.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 616656554027 - 2³² = 612361586731 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 616656554027.

It is not a weakly prime, because it can be changed into another prime (616656454027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308328277013 + 308328277014.

It is an arithmetic number, because the mean of its divisors is an integer number (308328277014).

Almost surely, 2^616656554027 is an apocalyptic number.

616656554027 is a deficient number, since it is larger than the sum of its proper divisors (1).

616656554027 is an equidigital number, since it uses as much as digits as its factorization.

616656554027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072000, while the sum is 53.

The spelling of 616656554027 in words is "six hundred sixteen billion, six hundred fifty-six million, five hundred fifty-four thousand, twenty-seven".