16220585403 has 12 divisors (see below), whose sum is σ = 25559710488. Its totient is φ = 9830657760.

The previous prime is 16220585371. The next prime is 16220585419. The reversal of 16220585403 is 30458502261.

16220585403 is a `hidden beast` number, since 1 + 62 + 2 + 0 + 58 + 540 + 3 = 666.

It is not a de Polignac number, because 16220585403 - 2⁵ = 16220585371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16220585203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81922050 + ... + 81922247.

It is an arithmetic number, because the mean of its divisors is an integer number (2129975874).

Almost surely, 2^16220585403 is an apocalyptic number.

16220585403 is a deficient number, since it is larger than the sum of its proper divisors (9339125085).

16220585403 is a wasteful number, since it uses less digits than its factorization.

16220585403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163844314 (or 163844311 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 16220585403 in words is "sixteen billion, two hundred twenty million, five hundred eighty-five thousand, four hundred three".