201630161523059 has 4 divisors (see below), whose sum is σ = 201630441898704. Its totient is φ = 201629881147416.

The previous prime is 201630161523041. The next prime is 201630161523061. The reversal of 201630161523059 is 950325161036102.

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 201630161523059 - 2²⁸ = 201629893087603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201630161523029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139106327 + ... + 140548320.

It is an arithmetic number, because the mean of its divisors is an integer number (50407610474676).

Almost surely, 2^{201630161523059} is an apocalyptic number.

201630161523059 is a deficient number, since it is larger than the sum of its proper divisors (280375645).

201630161523059 is an equidigital number, since it uses as much as digits as its factorization.

201630161523059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280375644.

The product of its (nonzero) digits is 291600, while the sum is 44.

The spelling of 201630161523059 in words is "two hundred one trillion, six hundred thirty billion, one hundred sixty-one million, five hundred twenty-three thousand, fifty-nine".