616067009761 has 4 divisors (see below), whose sum is σ = 704076582592. Its totient is φ = 528057436932.

The previous prime is 616067009743. The next prime is 616067009783. The reversal of 616067009761 is 167900760616.

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-616067009761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (616067009711) 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 3 ways as a sum of consecutive naturals, for example, 44004786405 + ... + 44004786418.

It is an arithmetic number, because the mean of its divisors is an integer number (176019145648).

Almost surely, 2^616067009761 is an apocalyptic number.

It is an amenable number.

616067009761 is a deficient number, since it is larger than the sum of its proper divisors (88009572831).

616067009761 is an equidigital number, since it uses as much as digits as its factorization.

616067009761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88009572830.

The product of its (nonzero) digits is 571536, while the sum is 49.

The spelling of 616067009761 in words is "six hundred sixteen billion, sixty-seven million, nine thousand, seven hundred sixty-one".