16340184778 has 8 divisors (see below), whose sum is σ = 24820534080. Its totient is φ = 8066673420.

The previous prime is 16340184743. The next prime is 16340184779. The reversal of 16340184778 is 87748104361.

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

It is not an unprimeable number, because it can be changed into a prime (16340184779) 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, 51709288 + ... + 51709603.

It is an arithmetic number, because the mean of its divisors is an integer number (3102566760).

Almost surely, 2^16340184778 is an apocalyptic number.

16340184778 is a deficient number, since it is larger than the sum of its proper divisors (8480349302).

16340184778 is a wasteful number, since it uses less digits than its factorization.

16340184778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103418972.

The product of its (nonzero) digits is 903168, while the sum is 49.

The spelling of 16340184778 in words is "sixteen billion, three hundred forty million, one hundred eighty-four thousand, seven hundred seventy-eight".