16116115985428 has 24 divisors (see below), whose sum is σ = 29687771221920. Its totient is φ = 7633901040480.

The previous prime is 16116115985423. The next prime is 16116115985429. The reversal of 16116115985428 is 82458951161161.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16116115985423) 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, 13192638 + ... + 14362378.

It is an arithmetic number, because the mean of its divisors is an integer number (1236990467580).

Almost surely, 2^{16116115985428} is an apocalyptic number.

It is an amenable number.

16116115985428 is a deficient number, since it is larger than the sum of its proper divisors (13571655236492).

16116115985428 is a wasteful number, since it uses less digits than its factorization.

16116115985428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351047 (or 1351045 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 58.

The spelling of 16116115985428 in words is "sixteen trillion, one hundred sixteen billion, one hundred fifteen million, nine hundred eighty-five thousand, four hundred twenty-eight".