21163316746702 has 32 divisors (see below), whose sum is σ = 34242458342400. Its totient is φ = 9751814062848.

The previous prime is 21163316746687. The next prime is 21163316746703. The reversal of 21163316746702 is 20764761336112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21163316746703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123815074 + ... + 123985882.

It is an arithmetic number, because the mean of its divisors is an integer number (1070076823200).

Almost surely, 2^{21163316746702} is an apocalyptic number.

21163316746702 is a deficient number, since it is larger than the sum of its proper divisors (13079141595698).

21163316746702 is a wasteful number, since it uses less digits than its factorization.

21163316746702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178540.

The product of its (nonzero) digits is 1524096, while the sum is 49.

The spelling of 21163316746702 in words is "twenty-one trillion, one hundred sixty-three billion, three hundred sixteen million, seven hundred forty-six thousand, seven hundred two".