20770842041 has 4 divisors (see below), whose sum is σ = 21063389184. Its totient is φ = 20478294900.

The previous prime is 20770842019. The next prime is 20770842067. The reversal of 20770842041 is 14024807702.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20770842041 - 2⁶ = 20770841977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20770841992 and 20770842010.

It is not an unprimeable number, because it can be changed into a prime (20770842091) 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, 146273465 + ... + 146273606.

It is an arithmetic number, because the mean of its divisors is an integer number (5265847296).

Almost surely, 2^20770842041 is an apocalyptic number.

It is an amenable number.

20770842041 is a deficient number, since it is larger than the sum of its proper divisors (292547143).

20770842041 is an equidigital number, since it uses as much as digits as its factorization.

20770842041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292547142.

The product of its (nonzero) digits is 25088, while the sum is 35.

The spelling of 20770842041 in words is "twenty billion, seven hundred seventy million, eight hundred forty-two thousand, forty-one".