201620342959 has 4 divisors (see below), whose sum is σ = 230423249104. Its totient is φ = 172817436816.

The previous prime is 201620342929. The next prime is 201620342969. The reversal of 201620342959 is 959243026102.

201620342959 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201620342959 - 2⁵ = 201620342927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201620342929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14401453062 + ... + 14401453075.

It is an arithmetic number, because the mean of its divisors is an integer number (57605812276).

Almost surely, 2^201620342959 is an apocalyptic number.

201620342959 is a deficient number, since it is larger than the sum of its proper divisors (28802906145).

201620342959 is an equidigital number, since it uses as much as digits as its factorization.

201620342959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28802906144.

The product of its (nonzero) digits is 233280, while the sum is 43.

The spelling of 201620342959 in words is "two hundred one billion, six hundred twenty million, three hundred forty-two thousand, nine hundred fifty-nine".