20446850132051 has 4 divisors (see below), whose sum is σ = 23367828722352. Its totient is φ = 17525871541752.

The previous prime is 20446850132047. The next prime is 20446850132077. The reversal of 20446850132051 is 15023105864402.

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

It is not a de Polignac number, because 20446850132051 - 2² = 20446850132047 is a prime.

It is a super-2 number, since 2×20446850132051² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20446850132011) 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, 1460489295140 + ... + 1460489295153.

It is an arithmetic number, because the mean of its divisors is an integer number (5841957180588).

Almost surely, 2^{20446850132051} is an apocalyptic number.

20446850132051 is a deficient number, since it is larger than the sum of its proper divisors (2920978590301).

20446850132051 is an equidigital number, since it uses as much as digits as its factorization.

20446850132051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2920978590300.

The product of its (nonzero) digits is 230400, while the sum is 41.

Adding to 20446850132051 its reverse (15023105864402), we get a palindrome (35469955996453).

The spelling of 20446850132051 in words is "twenty trillion, four hundred forty-six billion, eight hundred fifty million, one hundred thirty-two thousand, fifty-one".