20145140352205 has 32 divisors (see below), whose sum is σ = 27281683612800. Its totient is φ = 14145549600000.

The previous prime is 20145140352143. The next prime is 20145140352229. The reversal of 20145140352205 is 50225304154102.

It is a happy number.

It is not a de Polignac number, because 20145140352205 - 2²⁵ = 20145106797773 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 155449326 + ... + 155578864.

It is an arithmetic number, because the mean of its divisors is an integer number (852552612900).

Almost surely, 2^{20145140352205} is an apocalyptic number.

It is an amenable number.

20145140352205 is a deficient number, since it is larger than the sum of its proper divisors (7136543260595).

20145140352205 is a wasteful number, since it uses less digits than its factorization.

20145140352205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227085.

The product of its (nonzero) digits is 48000, while the sum is 34.

The spelling of 20145140352205 in words is "twenty trillion, one hundred forty-five billion, one hundred forty million, three hundred fifty-two thousand, two hundred five".