20146462545225 has 48 divisors (see below), whose sum is σ = 33364175708864. Its totient is φ = 10726926336000.

The previous prime is 20146462545199. The next prime is 20146462545299. The reversal of 20146462545225 is 52254526464102.

It is not a de Polignac number, because 20146462545225 - 2³⁰ = 20145388803401 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 648176685 + ... + 648207765.

Almost surely, 2^{20146462545225} is an apocalyptic number.

20146462545225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20146462545225 is a deficient number, since it is larger than the sum of its proper divisors (13217713163639).

20146462545225 is a wasteful number, since it uses less digits than its factorization.

20146462545225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45178 (or 45173 counting only the distinct ones).

The product of its (nonzero) digits is 4608000, while the sum is 48.

The spelling of 20146462545225 in words is "twenty trillion, one hundred forty-six billion, four hundred sixty-two million, five hundred forty-five thousand, two hundred twenty-five".