20452456562 has 8 divisors (see below), whose sum is σ = 30689693100. Its totient is φ = 10222558864.

The previous prime is 20452456561. The next prime is 20452456579. The reversal of 20452456562 is 26565425402.

It can be written as a sum of positive squares in 2 ways, for example, as 20130218161 + 322238401 = 141881^2 + 17951^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20452456561) 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, 1827737 + ... + 1838892.

Almost surely, 2^20452456562 is an apocalyptic number.

20452456562 is a deficient number, since it is larger than the sum of its proper divisors (10237236538).

20452456562 is a wasteful number, since it uses less digits than its factorization.

20452456562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3669420.

The product of its (nonzero) digits is 576000, while the sum is 41.

The spelling of 20452456562 in words is "twenty billion, four hundred fifty-two million, four hundred fifty-six thousand, five hundred sixty-two".