16253660603 has 4 divisors (see below), whose sum is σ = 16350988080. Its totient is φ = 16156333128.

The previous prime is 16253660593. The next prime is 16253660651. The reversal of 16253660603 is 30606635261.

It is a happy number.

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 16253660603 - 2¹⁰ = 16253659579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16253660803) 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, 48663488 + ... + 48663821.

It is an arithmetic number, because the mean of its divisors is an integer number (4087747020).

Almost surely, 2^16253660603 is an apocalyptic number.

16253660603 is a deficient number, since it is larger than the sum of its proper divisors (97327477).

16253660603 is an equidigital number, since it uses as much as digits as its factorization.

16253660603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97327476.

The product of its (nonzero) digits is 116640, while the sum is 38.

The spelling of 16253660603 in words is "sixteen billion, two hundred fifty-three million, six hundred sixty thousand, six hundred three".