20616546603 has 16 divisors (see below), whose sum is σ = 27675616640. Its totient is φ = 13651032384.

The previous prime is 20616546583. The next prime is 20616546607. The reversal of 20616546603 is 30664561602.

It is not a de Polignac number, because 20616546603 - 2⁸ = 20616546347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20616546607) 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, 773700 + ... + 799902.

It is an arithmetic number, because the mean of its divisors is an integer number (1729726040).

Almost surely, 2^20616546603 is an apocalyptic number.

20616546603 is a deficient number, since it is larger than the sum of its proper divisors (7059070037).

20616546603 is a wasteful number, since it uses less digits than its factorization.

20616546603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27978.

The product of its (nonzero) digits is 155520, while the sum is 39.

The spelling of 20616546603 in words is "twenty billion, six hundred sixteen million, five hundred forty-six thousand, six hundred three".