20451441452 has 48 divisors (see below), whose sum is σ = 39555926592. Its totient is φ = 9194100480.

The previous prime is 20451441449. The next prime is 20451441463. The reversal of 20451441452 is 25414415402.

It is a super-2 number, since 2×20451441452² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 295418 + ... + 358014.

It is an arithmetic number, because the mean of its divisors is an integer number (824081804).

Almost surely, 2^20451441452 is an apocalyptic number.

It is an amenable number.

20451441452 is a deficient number, since it is larger than the sum of its proper divisors (19104485140).

20451441452 is a wasteful number, since it uses less digits than its factorization.

20451441452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62778 (or 62776 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 32.

Adding to 20451441452 its reverse (25414415402), we get a palindrome (45865856854).

The spelling of 20451441452 in words is "twenty billion, four hundred fifty-one million, four hundred forty-one thousand, four hundred fifty-two".