16291086468 has 48 divisors (see below), whose sum is σ = 41184601920. Its totient is φ = 4992067584.

The previous prime is 16291086437. The next prime is 16291086503. The reversal of 16291086468 is 86468019261.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 16291086468.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 919813 + ... + 937356.

It is an arithmetic number, because the mean of its divisors is an integer number (858012540).

Almost surely, 2^16291086468 is an apocalyptic number.

It is an amenable number.

16291086468 is an abundant number, since it is smaller than the sum of its proper divisors (24893515452).

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

16291086468 is a wasteful number, since it uses less digits than its factorization.

16291086468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1857236 (or 1857234 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 51.

The spelling of 16291086468 in words is "sixteen billion, two hundred ninety-one million, eighty-six thousand, four hundred sixty-eight".