20541440695 has 4 divisors (see below), whose sum is σ = 24649728840. Its totient is φ = 16433152552.

The previous prime is 20541440687. The next prime is 20541440729. The reversal of 20541440695 is 59604414502.

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 20541440695 - 2³ = 20541440687 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 2054144065 + ... + 2054144074.

It is an arithmetic number, because the mean of its divisors is an integer number (6162432210).

Almost surely, 2^20541440695 is an apocalyptic number.

20541440695 is a deficient number, since it is larger than the sum of its proper divisors (4108288145).

20541440695 is an equidigital number, since it uses as much as digits as its factorization.

20541440695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4108288144.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 20541440695 in words is "twenty billion, five hundred forty-one million, four hundred forty thousand, six hundred ninety-five".