20161140007 has 4 divisors (see below), whose sum is σ = 20387669760. Its totient is φ = 19934610256.

The previous prime is 20161139959. The next prime is 20161140019. The reversal of 20161140007 is 70004116102.

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 20161140007 - 2¹⁹ = 20160615719 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20161140007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20161144007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113264743 + ... + 113264920.

It is an arithmetic number, because the mean of its divisors is an integer number (5096917440).

Almost surely, 2^20161140007 is an apocalyptic number.

20161140007 is a deficient number, since it is larger than the sum of its proper divisors (226529753).

20161140007 is an equidigital number, since it uses as much as digits as its factorization.

20161140007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226529752.

The product of its (nonzero) digits is 336, while the sum is 22.

Adding to 20161140007 its reverse (70004116102), we get a palindrome (90165256109).

The spelling of 20161140007 in words is "twenty billion, one hundred sixty-one million, one hundred forty thousand, seven".