5665401450 has 72 divisors (see below), whose sum is σ = 15231093228. Its totient is φ = 1509776640.

The previous prime is 5665401449. The next prime is 5665401457. The reversal of 5665401450 is 541045665.

5665401450 is a `hidden beast` number, since 5 + 66 + 540 + 1 + 4 + 50 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 2820565881 + 2844835569 = 53109^2 + 53337^2 .

It is not an unprimeable number, because it can be changed into a prime (5665401457) 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 35 ways as a sum of consecutive naturals, for example, 893692 + ... + 900008.

Almost surely, 2^5665401450 is an apocalyptic number.

5665401450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

5665401450 is an abundant number, since it is smaller than the sum of its proper divisors (9565691778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5665401450 is a wasteful number, since it uses less digits than its factorization.

5665401450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8328 (or 8320 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 5665401450 is about 75268.8610914235. The cubic root of 5665401450 is about 1782.6943845053.

The spelling of 5665401450 in words is "five billion, six hundred sixty-five million, four hundred one thousand, four hundred fifty".