450541650161 has 4 divisors (see below), whose sum is σ = 453058642800. Its totient is φ = 448024657524.

The previous prime is 450541650133. The next prime is 450541650197. The reversal of 450541650161 is 161056145054.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 450541650161 - 2¹⁰ = 450541649137 is a prime.

It is a super-2 number, since 2×450541650161² (a number of 24 digits) contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (450541652161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1258496051 + ... + 1258496408.

It is an arithmetic number, because the mean of its divisors is an integer number (113264660700).

Almost surely, 2^450541650161 is an apocalyptic number.

It is an amenable number.

450541650161 is a deficient number, since it is larger than the sum of its proper divisors (2516992639).

450541650161 is a wasteful number, since it uses less digits than its factorization.

450541650161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2516992638.

The product of its (nonzero) digits is 72000, while the sum is 38.

The spelling of 450541650161 in words is "four hundred fifty billion, five hundred forty-one million, six hundred fifty thousand, one hundred sixty-one".