201888481075445 has 64 divisors (see below), whose sum is σ = 259577925378048. Its totient is φ = 150487593984000.

The previous prime is 201888481075439. The next prime is 201888481075469. The reversal of 201888481075445 is 544570184888102.

It is a happy number.

It is not a de Polignac number, because 201888481075445 - 2²² = 201888476881141 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 215513189 + ... + 216447941.

It is an arithmetic number, because the mean of its divisors is an integer number (4055905084032).

Almost surely, 2^{201888481075445} is an apocalyptic number.

It is an amenable number.

201888481075445 is a deficient number, since it is larger than the sum of its proper divisors (57689444302603).

201888481075445 is a wasteful number, since it uses less digits than its factorization.

201888481075445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935334.

The product of its (nonzero) digits is 91750400, while the sum is 65.

The spelling of 201888481075445 in words is "two hundred one trillion, eight hundred eighty-eight billion, four hundred eighty-one million, seventy-five thousand, four hundred forty-five".