20626124452603 has 4 divisors (see below), whose sum is σ = 20626673626888. Its totient is φ = 20625575278320.

The previous prime is 20626124452561. The next prime is 20626124452621. The reversal of 20626124452603 is 30625442162602.

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 20626124452603 - 2¹³ = 20626124444411 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20626124452603.

It is not an unprimeable number, because it can be changed into a prime (20626124452693) 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, 274530801 + ... + 274605922.

It is an arithmetic number, because the mean of its divisors is an integer number (5156668406722).

Almost surely, 2^{20626124452603} is an apocalyptic number.

20626124452603 is a deficient number, since it is larger than the sum of its proper divisors (549174285).

20626124452603 is an equidigital number, since it uses as much as digits as its factorization.

20626124452603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549174284.

The product of its (nonzero) digits is 829440, while the sum is 43.

The spelling of 20626124452603 in words is "twenty trillion, six hundred twenty-six billion, one hundred twenty-four million, four hundred fifty-two thousand, six hundred three".