6620741503 has 4 divisors (see below), whose sum is σ = 6745661208. Its totient is φ = 6495821800.

The previous prime is 6620741473. The next prime is 6620741509. The reversal of 6620741503 is 3051470266.

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 6620741503 - 2¹⁷ = 6620610431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6620741509) 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, 62459773 + ... + 62459878.

It is an arithmetic number, because the mean of its divisors is an integer number (1686415302).

Almost surely, 2^6620741503 is an apocalyptic number.

6620741503 is a deficient number, since it is larger than the sum of its proper divisors (124919705).

6620741503 is a wasteful number, since it uses less digits than its factorization.

6620741503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124919704.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 6620741503 is about 81367.9390362076. The cubic root of 6620741503 is about 1877.7403724505.

The spelling of 6620741503 in words is "six billion, six hundred twenty million, seven hundred forty-one thousand, five hundred three".