16021507730238 has 16 divisors (see below), whose sum is σ = 35603350511760. Its totient is φ = 5340502576728.

The previous prime is 16021507730197. The next prime is 16021507730251. The reversal of 16021507730238 is 83203770512061.

16021507730238 is a `hidden beast` number, since 1 + 60 + 21 + 507 + 7 + 30 + 2 + 38 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 16021507730193 and 16021507730202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148347293745 + ... + 148347293852.

It is an arithmetic number, because the mean of its divisors is an integer number (2225209406985).

Almost surely, 2^{16021507730238} is an apocalyptic number.

16021507730238 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

16021507730238 is an abundant number, since it is smaller than the sum of its proper divisors (19581842781522).

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

16021507730238 is a wasteful number, since it uses less digits than its factorization.

16021507730238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296694587608 (or 296694587602 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 16021507730238 in words is "sixteen trillion, twenty-one billion, five hundred seven million, seven hundred thirty thousand, two hundred thirty-eight".