20446161407 has 8 divisors (see below), whose sum is σ = 23368849536. Its totient is φ = 17523925272.

The previous prime is 20446161403. The next prime is 20446161469. The reversal of 20446161407 is 70416164402.

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

It is not a de Polignac number, because 20446161407 - 2² = 20446161403 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 (20446161403) 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, 9773 + ... + 202454.

It is an arithmetic number, because the mean of its divisors is an integer number (2921106192).

Almost surely, 2^20446161407 is an apocalyptic number.

20446161407 is a deficient number, since it is larger than the sum of its proper divisors (2922688129).

20446161407 is a wasteful number, since it uses less digits than its factorization.

20446161407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225997.

The product of its (nonzero) digits is 32256, while the sum is 35.

The spelling of 20446161407 in words is "twenty billion, four hundred forty-six million, one hundred sixty-one thousand, four hundred seven".