16021774508 has 24 divisors (see below), whose sum is σ = 30411494064. Its totient is φ = 7355763200.

The previous prime is 16021774481. The next prime is 16021774511. The reversal of 16021774508 is 80547712061.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2870558 + ... + 2876133.

It is an arithmetic number, because the mean of its divisors is an integer number (1267145586).

Almost surely, 2^16021774508 is an apocalyptic number.

It is an amenable number.

16021774508 is a deficient number, since it is larger than the sum of its proper divisors (14389719556).

16021774508 is a wasteful number, since it uses less digits than its factorization.

16021774508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5746753 (or 5746751 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 41.

The spelling of 16021774508 in words is "sixteen billion, twenty-one million, seven hundred seventy-four thousand, five hundred eight".