12465400555 has 8 divisors (see below), whose sum is σ = 14960413872. Its totient is φ = 9971031648.

The previous prime is 12465400543. The next prime is 12465400559. The reversal of 12465400555 is 55500456421.

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 12465400555 - 2²⁹ = 11928529643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12465400559) 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, 117469 + ... + 196798.

It is an arithmetic number, because the mean of its divisors is an integer number (1870051734).

Almost surely, 2^12465400555 is an apocalyptic number.

12465400555 is a deficient number, since it is larger than the sum of its proper divisors (2495013317).

12465400555 is an equidigital number, since it uses as much as digits as its factorization.

12465400555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322205.

The product of its (nonzero) digits is 120000, while the sum is 37.

Adding to 12465400555 its reverse (55500456421), we get a palindrome (67965856976).

The spelling of 12465400555 in words is "twelve billion, four hundred sixty-five million, four hundred thousand, five hundred fifty-five".