201534155616 has 48 divisors (see below), whose sum is σ = 552028345344. Its totient is φ = 64257266304.

The previous prime is 201534155597. The next prime is 201534155621. The reversal of 201534155616 is 616551435102.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45635056 + ... + 45639471.

It is an arithmetic number, because the mean of its divisors is an integer number (11500590528).

Almost surely, 2^201534155616 is an apocalyptic number.

It is an amenable number.

201534155616 is an abundant number, since it is smaller than the sum of its proper divisors (350494189728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201534155616 is a wasteful number, since it uses less digits than its factorization.

201534155616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91274563 (or 91274555 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 39.

The spelling of 201534155616 in words is "two hundred one billion, five hundred thirty-four million, one hundred fifty-five thousand, six hundred sixteen".