450820567561 has 16 divisors (see below), whose sum is σ = 554997744000. Its totient is φ = 356602128768.

The previous prime is 450820567541. The next prime is 450820567573. The reversal of 450820567561 is 165765028054.

It is a cyclic number.

It is not a de Polignac number, because 450820567561 - 2¹⁵ = 450820534793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (450820567541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 272911 + ... + 987988.

It is an arithmetic number, because the mean of its divisors is an integer number (34687359000).

Almost surely, 2^450820567561 is an apocalyptic number.

It is an amenable number.

450820567561 is a deficient number, since it is larger than the sum of its proper divisors (104177176439).

450820567561 is a wasteful number, since it uses less digits than its factorization.

450820567561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1264848.

The product of its (nonzero) digits is 2016000, while the sum is 49.

The spelling of 450820567561 in words is "four hundred fifty billion, eight hundred twenty million, five hundred sixty-seven thousand, five hundred sixty-one".