20225532145 has 48 divisors (see below), whose sum is σ = 31802647680. Its totient is φ = 12048970752.

The previous prime is 20225532139. The next prime is 20225532163. The reversal of 20225532145 is 54123552202.

It is not a de Polignac number, because 20225532145 - 2⁵ = 20225532113 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15 + ... + 201124.

It is an arithmetic number, because the mean of its divisors is an integer number (662555160).

Almost surely, 2^20225532145 is an apocalyptic number.

It is an amenable number.

20225532145 is a deficient number, since it is larger than the sum of its proper divisors (11577115535).

20225532145 is a wasteful number, since it uses less digits than its factorization.

20225532145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201194 (or 201181 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The spelling of 20225532145 in words is "twenty billion, two hundred twenty-five million, five hundred thirty-two thousand, one hundred forty-five".