201164009523 has 8 divisors (see below), whose sum is σ = 273925459968. Its totient is φ = 131255949384.

The previous prime is 201164009513. The next prime is 201164009591. The reversal of 201164009523 is 325900461102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 201164009523 - 2¹³ = 201164001331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201164009513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 713347411 + ... + 713347692.

It is an arithmetic number, because the mean of its divisors is an integer number (34240682496).

Almost surely, 2^201164009523 is an apocalyptic number.

201164009523 is a deficient number, since it is larger than the sum of its proper divisors (72761450445).

201164009523 is a wasteful number, since it uses less digits than its factorization.

201164009523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426695153.

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 201164009523 in words is "two hundred one billion, one hundred sixty-four million, nine thousand, five hundred twenty-three".