616066444671253 has 4 divisors (see below), whose sum is σ = 616088446286508. Its totient is φ = 616044443056000.

The previous prime is 616066444671239. The next prime is 616066444671263. The reversal of 616066444671253 is 352176444660616.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 239421094204644 + 376645350466609 = 15473238^2 + 19407353^2 .

It is a cyclic number.

It is not a de Polignac number, because 616066444671253 - 2⁴¹ = 613867421415701 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 616066444671191 and 616066444671200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616066444671233) 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, 11000765626 + ... + 11000821627.

It is an arithmetic number, because the mean of its divisors is an integer number (154022111571627).

Almost surely, 2^{616066444671253} is an apocalyptic number.

It is an amenable number.

616066444671253 is a deficient number, since it is larger than the sum of its proper divisors (22001615255).

616066444671253 is a wasteful number, since it uses less digits than its factorization.

616066444671253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22001615254.

The product of its (nonzero) digits is 104509440, while the sum is 61.

The spelling of 616066444671253 in words is "six hundred sixteen trillion, sixty-six billion, four hundred forty-four million, six hundred seventy-one thousand, two hundred fifty-three".