16587337380804 has 144 divisors (see below), whose sum is σ = 43020105343488. Its totient is φ = 5386353398784.

The previous prime is 16587337380799. The next prime is 16587337380821. The reversal of 16587337380804 is 40808373378561.

16587337380804 is a `hidden beast` number, since 16 + 587 + 3 + 3 + 7 + 38 + 0 + 8 + 0 + 4 = 666.

It is a super-2 number, since 2×16587337380804² (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 47 ways as a sum of consecutive naturals, for example, 1516620424 + ... + 1516631360.

It is an arithmetic number, because the mean of its divisors is an integer number (298750731552).

Almost surely, 2^{16587337380804} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16587337380804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21510052671744).

16587337380804 is an abundant number, since it is smaller than the sum of its proper divisors (26432767962684).

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

16587337380804 is a wasteful number, since it uses less digits than its factorization.

16587337380804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15074 (or 15069 counting only the distinct ones).

The product of its (nonzero) digits is 81285120, while the sum is 63.

The spelling of 16587337380804 in words is "sixteen trillion, five hundred eighty-seven billion, three hundred thirty-seven million, three hundred eighty thousand, eight hundred four".