16602421272984 has 48 divisors (see below), whose sum is σ = 46630257284520. Its totient is φ = 5534140423680.

The previous prime is 16602421272973. The next prime is 16602421272989. The reversal of 16602421272984 is 48927212420661.

16602421272984 is a `hidden beast` number, since 1 + 6 + 60 + 2 + 421 + 2 + 72 + 98 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 16602421272984.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16602421272989) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4270168137 + ... + 4270172024.

Almost surely, 2^{16602421272984} is an apocalyptic number.

It is an amenable number.

16602421272984 is an abundant number, since it is smaller than the sum of its proper divisors (30027836011536).

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

16602421272984 is an equidigital number, since it uses as much as digits as its factorization.

16602421272984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8540340182 (or 8540340166 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 16602421272984 in words is "sixteen trillion, six hundred two billion, four hundred twenty-one million, two hundred seventy-two thousand, nine hundred eighty-four".