616555150605 has 12 divisors (see below), whose sum is σ = 1068695594460. Its totient is φ = 328829413632.

The previous prime is 616555150573. The next prime is 616555150609. The reversal of 616555150605 is 506051555616.

It can be written as a sum of positive squares in 2 ways, for example, as 428096712681 + 188458437924 = 654291^2 + 434118^2 .

It is not a de Polignac number, because 616555150605 - 2⁵ = 616555150573 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 13701225569 = 616555150605 / (6 + 1 + 6 + 5 + 5 + 5 + 1 + 5 + 0 + 6 + 0 + 5).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616555150609) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6850612740 + ... + 6850612829.

It is an arithmetic number, because the mean of its divisors is an integer number (89057966205).

Almost surely, 2^616555150605 is an apocalyptic number.

It is an amenable number.

616555150605 is a deficient number, since it is larger than the sum of its proper divisors (452140443855).

616555150605 is a wasteful number, since it uses less digits than its factorization.

616555150605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13701225580 (or 13701225577 counting only the distinct ones).

The product of its (nonzero) digits is 675000, while the sum is 45.

The spelling of 616555150605 in words is "six hundred sixteen billion, five hundred fifty-five million, one hundred fifty thousand, six hundred five".