13645063601 has 8 divisors (see below), whose sum is σ = 14702538984. Its totient is φ = 12588710400.

The previous prime is 13645063591. The next prime is 13645063603. The reversal of 13645063601 is 10636054631.

It can be written as a sum of positive squares in 4 ways, for example, as 1011303601 + 12633760000 = 31801^2 + 112400^2 .

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 13645063601 - 2¹⁴ = 13645047217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13645063603) 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, 255200 + ... + 304001.

It is an arithmetic number, because the mean of its divisors is an integer number (1837817373).

Almost surely, 2^13645063601 is an apocalyptic number.

It is an amenable number.

13645063601 is a deficient number, since it is larger than the sum of its proper divisors (1057475383).

13645063601 is a wasteful number, since it uses less digits than its factorization.

13645063601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561091.

The product of its (nonzero) digits is 38880, while the sum is 35.

The spelling of 13645063601 in words is "thirteen billion, six hundred forty-five million, sixty-three thousand, six hundred one".