20936143467312 has 80 divisors (see below), whose sum is σ = 54179409081600. Its totient is φ = 6966539257600.

The previous prime is 20936143467257. The next prime is 20936143467319. The reversal of 20936143467312 is 21376434163902.

It is a super-2 number, since 2×20936143467312² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20936143467319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 648945262 + ... + 648977522.

It is an arithmetic number, because the mean of its divisors is an integer number (677242613520).

Almost surely, 2^{20936143467312} is an apocalyptic number.

It is an amenable number.

20936143467312 is an abundant number, since it is smaller than the sum of its proper divisors (33243265614288).

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

20936143467312 is a wasteful number, since it uses less digits than its factorization.

20936143467312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55442 (or 55436 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 51.

The spelling of 20936143467312 in words is "twenty trillion, nine hundred thirty-six billion, one hundred forty-three million, four hundred sixty-seven thousand, three hundred twelve".