16380139228776 has 40 divisors (see below), whose sum is σ = 45879556637970. Its totient is φ = 5460046409376.

The previous prime is 16380139228729. The next prime is 16380139228813. The reversal of 16380139228776 is 67782293108361.

16380139228776 is a `hidden beast` number, since 16 + 380 + 13 + 9 + 228 + 7 + 7 + 6 = 666.

16380139228776 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 14047878802500 + 2332260426276 = 3748050^2 + 1527174^2 .

It is a super-2 number, since 2×16380139228776² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 12638995671 + ... + 12638996966.

Almost surely, 2^{16380139228776} is an apocalyptic number.

It is an amenable number.

16380139228776 is an abundant number, since it is smaller than the sum of its proper divisors (29499417409194).

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

16380139228776 is a wasteful number, since it uses less digits than its factorization.

16380139228776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25277992655 (or 25277992642 counting only the distinct ones).

The product of its (nonzero) digits is 36578304, while the sum is 63.

The spelling of 16380139228776 in words is "sixteen trillion, three hundred eighty billion, one hundred thirty-nine million, two hundred twenty-eight thousand, seven hundred seventy-six".