4013503663 has 4 divisors (see below), whose sum is σ = 4322234728. Its totient is φ = 3704772600.

The previous prime is 4013503661. The next prime is 4013503709. The reversal of 4013503663 is 3663053104.

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 4013503663 - 2¹ = 4013503661 is a prime.

It is a super-2 number, since 2×4013503663² = 32216423305828835138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4013503661) 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, 154365513 + ... + 154365538.

It is an arithmetic number, because the mean of its divisors is an integer number (1080558682).

Almost surely, 2^4013503663 is an apocalyptic number.

4013503663 is a deficient number, since it is larger than the sum of its proper divisors (308731065).

4013503663 is a wasteful number, since it uses less digits than its factorization.

4013503663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308731064.

The product of its (nonzero) digits is 19440, while the sum is 31.

The square root of 4013503663 is about 63352.2190850486. The cubic root of 4013503663 is about 1589.1853563226.

Adding to 4013503663 its reverse (3663053104), we get a palindrome (7676556767).

The spelling of 4013503663 in words is "four billion, thirteen million, five hundred three thousand, six hundred sixty-three".