12553362465 has 16 divisors (see below), whose sum is σ = 22954720128. Its totient is φ = 5738679936.

The previous prime is 12553362457. The next prime is 12553362469. The reversal of 12553362465 is 56426335521.

It is a happy number.

It is not a de Polignac number, because 12553362465 - 2³ = 12553362457 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12553362469) 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, 59777812 + ... + 59778021.

It is an arithmetic number, because the mean of its divisors is an integer number (1434670008).

Almost surely, 2^12553362465 is an apocalyptic number.

12553362465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12553362465 is a deficient number, since it is larger than the sum of its proper divisors (10401357663).

12553362465 is a wasteful number, since it uses less digits than its factorization.

12553362465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119555848.

The product of its digits is 648000, while the sum is 42.

Adding to 12553362465 its reverse (56426335521), we get a palindrome (68979697986).

The spelling of 12553362465 in words is "twelve billion, five hundred fifty-three million, three hundred sixty-two thousand, four hundred sixty-five".