12395516551 has 8 divisors (see below), whose sum is σ = 13621086864. Its totient is φ = 11186397120.

The previous prime is 12395516537. The next prime is 12395516579. The reversal of 12395516551 is 15561559321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12395516551 - 2⁵ = 12395516519 is a prime.

It is a super-2 number, since 2×12395516551² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12395516498 and 12395516507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12395516521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4111140 + ... + 4114153.

It is an arithmetic number, because the mean of its divisors is an integer number (1702635858).

Almost surely, 2^12395516551 is an apocalyptic number.

12395516551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12395516551 is a deficient number, since it is larger than the sum of its proper divisors (1225570313).

12395516551 is a wasteful number, since it uses less digits than its factorization.

12395516551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8225441.

The product of its digits is 202500, while the sum is 43.

The spelling of 12395516551 in words is "twelve billion, three hundred ninety-five million, five hundred sixteen thousand, five hundred fifty-one".