20450404441601 has 16 divisors (see below), whose sum is σ = 21710005492608. Its totient is φ = 19197141600000.

The previous prime is 20450404441517. The next prime is 20450404441619. The reversal of 20450404441601 is 10614440405402.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20450404441601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20450404441651) 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, 13758476 + ... + 15172226.

It is an arithmetic number, because the mean of its divisors is an integer number (1356875343288).

Almost surely, 2^{20450404441601} is an apocalyptic number.

It is an amenable number.

20450404441601 is a deficient number, since it is larger than the sum of its proper divisors (1259601051007).

20450404441601 is a wasteful number, since it uses less digits than its factorization.

20450404441601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415992.

The product of its (nonzero) digits is 61440, while the sum is 35.

The spelling of 20450404441601 in words is "twenty trillion, four hundred fifty billion, four hundred four million, four hundred forty-one thousand, six hundred one".