16355781814 has 8 divisors (see below), whose sum is σ = 24557019048. Its totient is φ = 8170108800.

The previous prime is 16355781797. The next prime is 16355781823. The reversal of 16355781814 is 41818755361.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3888427 + ... + 3892630.

It is an arithmetic number, because the mean of its divisors is an integer number (3069627381).

Almost surely, 2^16355781814 is an apocalyptic number.

16355781814 is a deficient number, since it is larger than the sum of its proper divisors (8201237234).

16355781814 is a wasteful number, since it uses less digits than its factorization.

16355781814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7782110.

The product of its digits is 806400, while the sum is 49.

The spelling of 16355781814 in words is "sixteen billion, three hundred fifty-five million, seven hundred eighty-one thousand, eight hundred fourteen".