20313146032665 has 16 divisors (see below), whose sum is σ = 32556401696448. Its totient is φ = 10815221869376.

The previous prime is 20313146032661. The next prime is 20313146032703. The reversal of 20313146032665 is 56623064131302.

It is a cyclic number.

It is not a de Polignac number, because 20313146032665 - 2² = 20313146032661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20313146032661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1153491822 + ... + 1153509431.

It is an arithmetic number, because the mean of its divisors is an integer number (2034775106028).

Almost surely, 2^{20313146032665} is an apocalyptic number.

It is an amenable number.

20313146032665 is a deficient number, since it is larger than the sum of its proper divisors (12243255663783).

20313146032665 is a wasteful number, since it uses less digits than its factorization.

20313146032665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2307001848.

The product of its (nonzero) digits is 466560, while the sum is 42.

The spelling of 20313146032665 in words is "twenty trillion, three hundred thirteen billion, one hundred forty-six million, thirty-two thousand, six hundred sixty-five".