16545253221740 has 24 divisors (see below), whose sum is σ = 34750816108512. Its totient is φ = 6616999509120.

The previous prime is 16545253221737. The next prime is 16545253221803. The reversal of 16545253221740 is 4712235254561.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68738081 + ... + 68978360.

It is an arithmetic number, because the mean of its divisors is an integer number (1447950671188).

Almost surely, 2^{16545253221740} is an apocalyptic number.

16545253221740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16545253221740 is an abundant number, since it is smaller than the sum of its proper divisors (18205562886772).

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

16545253221740 is a wasteful number, since it uses less digits than its factorization.

16545253221740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137722457 (or 137722455 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 47.

The spelling of 16545253221740 in words is "sixteen trillion, five hundred forty-five billion, two hundred fifty-three million, two hundred twenty-one thousand, seven hundred forty".