21170373300518 has 32 divisors (see below), whose sum is σ = 35688577579200. Its totient is φ = 9345227544576.

The previous prime is 21170373300473. The next prime is 21170373300613. The reversal of 21170373300518 is 81500337307112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4615178 + ... + 7977506.

It is an arithmetic number, because the mean of its divisors is an integer number (1115268049350).

Almost surely, 2^{21170373300518} is an apocalyptic number.

21170373300518 is a deficient number, since it is larger than the sum of its proper divisors (14518204278682).

21170373300518 is a wasteful number, since it uses less digits than its factorization.

21170373300518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3372896.

The product of its (nonzero) digits is 105840, while the sum is 41.

The spelling of 21170373300518 in words is "twenty-one trillion, one hundred seventy billion, three hundred seventy-three million, three hundred thousand, five hundred eighteen".