20010454401 has 64 divisors (see below), whose sum is σ = 33451591680. Its totient is φ = 10374497280.

The previous prime is 20010454397. The next prime is 20010454421. The reversal of 20010454401 is 10445401002.

It is a happy number.

It is not a de Polignac number, because 20010454401 - 2² = 20010454397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (20010454421) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9389106 + ... + 9391236.

It is an arithmetic number, because the mean of its divisors is an integer number (522681120).

Almost surely, 2^20010454401 is an apocalyptic number.

20010454401 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20010454401 is a deficient number, since it is larger than the sum of its proper divisors (13441137279).

20010454401 is a wasteful number, since it uses less digits than its factorization.

20010454401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3094.

The product of its (nonzero) digits is 640, while the sum is 21.

Adding to 20010454401 its reverse (10445401002), we get a palindrome (30455855403).

The spelling of 20010454401 in words is "twenty billion, ten million, four hundred fifty-four thousand, four hundred one".