6523616667345 has 16 divisors (see below), whose sum is σ = 10438230808512. Its totient is φ = 3479114175680.

The previous prime is 6523616667341. The next prime is 6523616667427. The reversal of 6523616667345 is 5437666163256.

It is not a de Polignac number, because 6523616667345 - 2² = 6523616667341 is a prime.

It is a super-2 number, since 2×6523616667345² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6523616667341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8888202 + ... + 9594131.

It is an arithmetic number, because the mean of its divisors is an integer number (652389425532).

Almost surely, 2^{6523616667345} is an apocalyptic number.

It is an amenable number.

6523616667345 is a deficient number, since it is larger than the sum of its proper divisors (3914614141167).

6523616667345 is a wasteful number, since it uses less digits than its factorization.

6523616667345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18505872.

The product of its digits is 97977600, while the sum is 60.

The spelling of 6523616667345 in words is "six trillion, five hundred twenty-three billion, six hundred sixteen million, six hundred sixty-seven thousand, three hundred forty-five".