201542225115 has 96 divisors (see below), whose sum is σ = 409554904320. Its totient is φ = 83688595200.

The previous prime is 201542225047. The next prime is 201542225117. The reversal of 201542225115 is 511522245102.

It is not a de Polignac number, because 201542225115 - 2⁹ = 201542224603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201542225117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10428081 + ... + 10447389.

It is an arithmetic number, because the mean of its divisors is an integer number (4266196920).

Almost surely, 2^201542225115 is an apocalyptic number.

201542225115 is an abundant number, since it is smaller than the sum of its proper divisors (208012679205).

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

201542225115 is a wasteful number, since it uses less digits than its factorization.

201542225115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20633 (or 20626 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 30.

The spelling of 201542225115 in words is "two hundred one billion, five hundred forty-two million, two hundred twenty-five thousand, one hundred fifteen".