464551663 has 4 divisors (see below), whose sum is σ = 472425480. Its totient is φ = 456677848.

The previous prime is 464551643. The next prime is 464551693. The reversal of 464551663 is 366155464.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 464551663 - 2²¹ = 462454511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (464551603) 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, 3936820 + ... + 3936937.

It is an arithmetic number, because the mean of its divisors is an integer number (118106370).

Almost surely, 2^464551663 is an apocalyptic number.

464551663 is a deficient number, since it is larger than the sum of its proper divisors (7873817).

464551663 is an equidigital number, since it uses as much as digits as its factorization.

464551663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7873816.

The product of its digits is 259200, while the sum is 40.

The square root of 464551663 is about 21553.4605806121. The cubic root of 464551663 is about 774.4820197479.

The spelling of 464551663 in words is "four hundred sixty-four million, five hundred fifty-one thousand, six hundred sixty-three".