5665401603 has 16 divisors (see below), whose sum is σ = 8399200800. Its totient is φ = 3774228480.

The previous prime is 5665401587. The next prime is 5665401647. The reversal of 5665401603 is 3061045665.

5665401603 is a `hidden beast` number, since 5 + 6 + 6 + 5 + 40 + 1 + 603 = 666.

It is not a de Polignac number, because 5665401603 - 2⁴ = 5665401587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5665406603) 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, 36418 + ... + 112503.

It is an arithmetic number, because the mean of its divisors is an integer number (524950050).

Almost surely, 2^5665401603 is an apocalyptic number.

5665401603 is a deficient number, since it is larger than the sum of its proper divisors (2733799197).

5665401603 is a wasteful number, since it uses less digits than its factorization.

5665401603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150339 (or 150333 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 5665401603 is about 75268.8621077800. The cubic root of 5665401603 is about 1782.6944005531.

The spelling of 5665401603 in words is "five billion, six hundred sixty-five million, four hundred one thousand, six hundred three".