16091408564 has 48 divisors (see below), whose sum is σ = 35552993280. Its totient is φ = 6190011360.

The previous prime is 16091408537. The next prime is 16091408581. The reversal of 16091408564 is 46580419061.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

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, 306332 + ... + 354995.

It is an arithmetic number, because the mean of its divisors is an integer number (740687360).

Almost surely, 2^16091408564 is an apocalyptic number.

16091408564 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

16091408564 is an abundant number, since it is smaller than the sum of its proper divisors (19461584716).

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

16091408564 is a wasteful number, since it uses less digits than its factorization.

16091408564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661428 (or 661426 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 44.

The spelling of 16091408564 in words is "sixteen billion, ninety-one million, four hundred eight thousand, five hundred sixty-four".