204501500400045 has 16 divisors (see below), whose sum is σ = 329161696456320. Its totient is φ = 108414368274624.

The previous prime is 204501500399927. The next prime is 204501500400079. The reversal of 204501500400045 is 540004005105402.

It is not a de Polignac number, because 204501500400045 - 2³⁰ = 204500426658221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204501500399985 and 204501500400021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40818660250 + ... + 40818665259.

It is an arithmetic number, because the mean of its divisors is an integer number (20572606028520).

Almost surely, 2^{204501500400045} is an apocalyptic number.

It is an amenable number.

204501500400045 is a deficient number, since it is larger than the sum of its proper divisors (124660196056275).

204501500400045 is a wasteful number, since it uses less digits than its factorization.

204501500400045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81637325684.

The product of its (nonzero) digits is 16000, while the sum is 30.

Adding to 204501500400045 its reverse (540004005105402), we get a palindrome (744505505505447).

The spelling of 204501500400045 in words is "two hundred four trillion, five hundred one billion, five hundred million, four hundred thousand, forty-five".