20545756441 has 8 divisors (see below), whose sum is σ = 23485590464. Its totient is φ = 17607103920.

The previous prime is 20545756423. The next prime is 20545756463. The reversal of 20545756441 is 14465754502.

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

It is not a de Polignac number, because 20545756441 - 2⁵ = 20545756409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20545756241) 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, 257790 + ... + 327943.

It is an arithmetic number, because the mean of its divisors is an integer number (2935698808).

Almost surely, 2^20545756441 is an apocalyptic number.

It is an amenable number.

20545756441 is a deficient number, since it is larger than the sum of its proper divisors (2939834023).

20545756441 is an equidigital number, since it uses as much as digits as its factorization.

20545756441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590751.

The product of its (nonzero) digits is 672000, while the sum is 43.

The spelling of 20545756441 in words is "twenty billion, five hundred forty-five million, seven hundred fifty-six thousand, four hundred forty-one".