21835387162716 has 24 divisors (see below), whose sum is σ = 50991101362320. Its totient is φ = 7272481723392.

The previous prime is 21835387162627. The next prime is 21835387162717. The reversal of 21835387162716 is 61726178353812.

It is a self number, because there is not a number n which added to its sum of digits gives 21835387162716.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21835387162717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 747567811 + ... + 747597018.

It is an arithmetic number, because the mean of its divisors is an integer number (2124629223430).

Almost surely, 2^{21835387162716} is an apocalyptic number.

It is an amenable number.

21835387162716 is an abundant number, since it is smaller than the sum of its proper divisors (29155714199604).

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

21835387162716 is a wasteful number, since it uses less digits than its factorization.

21835387162716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1495166053 (or 1495166051 counting only the distinct ones).

The product of its digits is 20321280, while the sum is 60.

The spelling of 21835387162716 in words is "twenty-one trillion, eight hundred thirty-five billion, three hundred eighty-seven million, one hundred sixty-two thousand, seven hundred sixteen".