16420258565274 has 8 divisors (see below), whose sum is σ = 32840517130560. Its totient is φ = 5473419521756.

The previous prime is 16420258565219. The next prime is 16420258565297. The reversal of 16420258565274 is 47256585202461.

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

16420258565274 is an admirable 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, 1368354880434 + ... + 1368354880445.

It is an arithmetic number, because the mean of its divisors is an integer number (4105064641320).

Almost surely, 2^{16420258565274} is an apocalyptic number.

16420258565274 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

16420258565274 is a wasteful number, since it uses less digits than its factorization.

16420258565274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2736709760884.

The product of its (nonzero) digits is 32256000, while the sum is 57.

The spelling of 16420258565274 in words is "sixteen trillion, four hundred twenty billion, two hundred fifty-eight million, five hundred sixty-five thousand, two hundred seventy-four".