20623776603 has 8 divisors (see below), whose sum is σ = 27807339600. Its totient is φ = 13594699008.

The previous prime is 20623776601. The next prime is 20623776647. The reversal of 20623776603 is 30667732602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20623776603 - 2¹ = 20623776601 is a prime.

It is a super-2 number, since 2×20623776603² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20623776601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38621038 + ... + 38621571.

It is an arithmetic number, because the mean of its divisors is an integer number (3475917450).

Almost surely, 2^20623776603 is an apocalyptic number.

20623776603 is a deficient number, since it is larger than the sum of its proper divisors (7183562997).

20623776603 is an equidigital number, since it uses as much as digits as its factorization.

20623776603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77242701.

The product of its (nonzero) digits is 381024, while the sum is 42.

The spelling of 20623776603 in words is "twenty billion, six hundred twenty-three million, seven hundred seventy-six thousand, six hundred three".