204542051201001 has 64 divisors (see below), whose sum is σ = 313271661830400. Its totient is φ = 131800773888000.

The previous prime is 204542051200997. The next prime is 204542051201021. The reversal of 204542051201001 is 100102150245402.

It is a happy number.

204542051201001 is a `hidden beast` number, since 2 + 0 + 4 + 5 + 42 + 0 + 512 + 0 + 100 + 1 = 666.

It is not a de Polignac number, because 204542051201001 - 2² = 204542051200997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (204542051201021) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 167372026 + ... + 168589676.

It is an arithmetic number, because the mean of its divisors is an integer number (4894869716100).

Almost surely, 2^{204542051201001} is an apocalyptic number.

It is an amenable number.

204542051201001 is a deficient number, since it is larger than the sum of its proper divisors (108729610629399).

204542051201001 is a wasteful number, since it uses less digits than its factorization.

204542051201001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218807 (or 1218801 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The spelling of 204542051201001 in words is "two hundred four trillion, five hundred forty-two billion, fifty-one million, two hundred one thousand, one".