616560105157 has 4 divisors (see below), whose sum is σ = 616962823936. Its totient is φ = 616157386380.

The previous prime is 616560105137. The next prime is 616560105173. The reversal of 616560105157 is 751501065616.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-616560105157 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 (616560105137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201357093 + ... + 201360154.

It is an arithmetic number, because the mean of its divisors is an integer number (154240705984).

Almost surely, 2^616560105157 is an apocalyptic number.

It is an amenable number.

616560105157 is a deficient number, since it is larger than the sum of its proper divisors (402718779).

616560105157 is a wasteful number, since it uses less digits than its factorization.

616560105157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402718778.

The product of its (nonzero) digits is 189000, while the sum is 43.

The spelling of 616560105157 in words is "six hundred sixteen billion, five hundred sixty million, one hundred five thousand, one hundred fifty-seven".