451011663 has 12 divisors (see below), whose sum is σ = 653433768. Its totient is φ = 299764080.

The previous prime is 451011661. The next prime is 451011679. The reversal of 451011663 is 366110154.

It is not a de Polignac number, because 451011663 - 2¹ = 451011661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451011661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72720 + ... + 78677.

It is an arithmetic number, because the mean of its divisors is an integer number (54452814).

Almost surely, 2^451011663 is an apocalyptic number.

451011663 is a deficient number, since it is larger than the sum of its proper divisors (202422105).

451011663 is a wasteful number, since it uses less digits than its factorization.

451011663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151734 (or 151731 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 451011663 is about 21237.0351744305. The cubic root of 451011663 is about 766.8832595560.

It can be divided in two parts, 45101 and 1663, that added together give a palindrome (46764).

The spelling of 451011663 in words is "four hundred fifty-one million, eleven thousand, six hundred sixty-three".