20354071463516 has 24 divisors (see below), whose sum is σ = 42021308829696. Its totient is φ = 8441780790960.

The previous prime is 20354071463513. The next prime is 20354071463519. The reversal of 20354071463516 is 61536417045302.

It is an interprime number because it is at equal distance from previous prime (20354071463513) and next prime (20354071463519).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20354071463513) 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, 11724694676 + ... + 11724696411.

It is an arithmetic number, because the mean of its divisors is an integer number (1750887867904).

Almost surely, 2^{20354071463516} is an apocalyptic number.

It is an amenable number.

20354071463516 is an abundant number, since it is smaller than the sum of its proper divisors (21667237366180).

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

20354071463516 is a wasteful number, since it uses less digits than its factorization.

20354071463516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23449391129 (or 23449391127 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 47.

The spelling of 20354071463516 in words is "twenty trillion, three hundred fifty-four billion, seventy-one million, four hundred sixty-three thousand, five hundred sixteen".