16386767540 has 96 divisors (see below), whose sum is σ = 41032220544. Its totient is φ = 5418293760.

The previous prime is 16386767477. The next prime is 16386767543. The reversal of 16386767540 is 4576768361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16386767543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 148862 + ... + 234378.

It is an arithmetic number, because the mean of its divisors is an integer number (427418964).

Almost surely, 2^16386767540 is an apocalyptic number.

16386767540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16386767540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20516110272).

16386767540 is an abundant number, since it is smaller than the sum of its proper divisors (24645453004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16386767540 is a wasteful number, since it uses less digits than its factorization.

16386767540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85617 (or 85615 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 53.

The spelling of 16386767540 in words is "sixteen billion, three hundred eighty-six million, seven hundred sixty-seven thousand, five hundred forty".