616426164641 has 6 divisors (see below), whose sum is σ = 717067171170. Its totient is φ = 528365283936.

The previous prime is 616426164637. The next prime is 616426164649. The reversal of 616426164641 is 146461624616.

616426164641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 539741478241 + 76684686400 = 734671^2 + 276920^2 .

It is not a de Polignac number, because 616426164641 - 2² = 616426164637 is a prime.

It is not an unprimeable number, because it can be changed into a prime (616426164649) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6290062856 + ... + 6290062953.

It is an arithmetic number, because the mean of its divisors is an integer number (119511195195).

Almost surely, 2^616426164641 is an apocalyptic number.

It is an amenable number.

616426164641 is a deficient number, since it is larger than the sum of its proper divisors (100641006529).

616426164641 is a wasteful number, since it uses less digits than its factorization.

616426164641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12580125823 (or 12580125816 counting only the distinct ones).

The product of its digits is 995328, while the sum is 47.

The spelling of 616426164641 in words is "six hundred sixteen billion, four hundred twenty-six million, one hundred sixty-four thousand, six hundred forty-one".