201054640545 has 192 divisors, whose sum is σ = 396038522880. Its totient is φ = 93511756800.

The previous prime is 201054640517. The next prime is 201054640603. The reversal of 201054640545 is 545046450102.

201054640545 is a `hidden beast` number, since 2 + 0 + 1 + 0 + 5 + 4 + 640 + 5 + 4 + 5 = 666.

It is not a de Polignac number, because 201054640545 - 2²² = 201050446241 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 399710764 + ... + 399711266.

It is an arithmetic number, because the mean of its divisors is an integer number (2062700640).

Almost surely, 2^201054640545 is an apocalyptic number.

It is an amenable number.

201054640545 is a deficient number, since it is larger than the sum of its proper divisors (194983882335).

201054640545 is a wasteful number, since it uses less digits than its factorization.

201054640545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868 (or 865 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

The spelling of 201054640545 in words is "two hundred one billion, fifty-four million, six hundred forty thousand, five hundred forty-five".