20454520454 has 8 divisors (see below), whose sum is σ = 30683591400. Its totient is φ = 10226656656.

The previous prime is 20454520451. The next prime is 20454520483. The reversal of 20454520454 is 45402545402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20454520454² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20454520451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 258164 + ... + 327959.

It is an arithmetic number, because the mean of its divisors is an integer number (3835448925).

Almost surely, 2^20454520454 is an apocalyptic number.

20454520454 is a deficient number, since it is larger than the sum of its proper divisors (10229070946).

20454520454 is a wasteful number, since it uses less digits than its factorization.

20454520454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603574.

The product of its (nonzero) digits is 128000, while the sum is 35.

The spelling of 20454520454 in words is "twenty billion, four hundred fifty-four million, five hundred twenty thousand, four hundred fifty-four".