20020045646601 has 384 divisors, whose sum is σ = 42059655106560. Its totient is φ = 8831085004800.

The previous prime is 20020045646597. The next prime is 20020045646683. The reversal of 20020045646601 is 10664654002002.

20020045646601 is a `hidden beast` number, since 2 + 0 + 0 + 2 + 0 + 0 + 4 + 5 + 6 + 46 + 601 = 666.

It is not a de Polignac number, because 20020045646601 - 2² = 20020045646597 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20020041646601) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 3426326986 + ... + 3426332828.

It is an arithmetic number, because the mean of its divisors is an integer number (109530351840).

Almost surely, 2^{20020045646601} is an apocalyptic number.

20020045646601 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20020045646601 is an abundant number, since it is smaller than the sum of its proper divisors (22039609459959).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20020045646601 is a wasteful number, since it uses less digits than its factorization.

20020045646601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6477 (or 6474 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Adding to 20020045646601 its reverse (10664654002002), we get a palindrome (30684699648603).

The spelling of 20020045646601 in words is "twenty trillion, twenty billion, forty-five million, six hundred forty-six thousand, six hundred one".