16587887312 has 20 divisors (see below), whose sum is σ = 32526251520. Its totient is φ = 8194015968.

The previous prime is 16587887311. The next prime is 16587887321. The reversal of 16587887312 is 21378878561.

It is a super-2 number, since 2×16587887312² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16587887311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6244112 + ... + 6246767.

It is an arithmetic number, because the mean of its divisors is an integer number (1626312576).

Almost surely, 2^16587887312 is an apocalyptic number.

It is an amenable number.

16587887312 is a deficient number, since it is larger than the sum of its proper divisors (15938364208).

16587887312 is a wasteful number, since it uses less digits than its factorization.

16587887312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12490970 (or 12490964 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 56.

The spelling of 16587887312 in words is "sixteen billion, five hundred eighty-seven million, eight hundred eighty-seven thousand, three hundred twelve".