12643601255445 has 64 divisors (see below), whose sum is σ = 22261412505600. Its totient is φ = 6099295023360.

The previous prime is 12643601255431. The next prime is 12643601255459. The reversal of 12643601255445 is 54455210634621.

It is an interprime number because it is at equal distance from previous prime (12643601255431) and next prime (12643601255459).

It is not a de Polignac number, because 12643601255445 - 2⁸ = 12643601255189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12643601255394 and 12643601255403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1763586 + ... + 5328924.

It is an arithmetic number, because the mean of its divisors is an integer number (347834570400).

Almost surely, 2^{12643601255445} is an apocalyptic number.

12643601255445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12643601255445 is a deficient number, since it is larger than the sum of its proper divisors (9617811250155).

12643601255445 is a wasteful number, since it uses less digits than its factorization.

12643601255445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3565930.

The product of its (nonzero) digits is 3456000, while the sum is 48.

The spelling of 12643601255445 in words is "twelve trillion, six hundred forty-three billion, six hundred one million, two hundred fifty-five thousand, four hundred forty-five".