20743056061 has 8 divisors (see below), whose sum is σ = 25529915264. Its totient is φ = 16412088240.

The previous prime is 20743056043. The next prime is 20743056091. The reversal of 20743056061 is 16065034702.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20743056061 - 2¹⁷ = 20742924989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20743056001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113972745 + ... + 113972926.

It is an arithmetic number, because the mean of its divisors is an integer number (3191239408).

Almost surely, 2^20743056061 is an apocalyptic number.

It is an amenable number.

20743056061 is a deficient number, since it is larger than the sum of its proper divisors (4786859203).

20743056061 is a wasteful number, since it uses less digits than its factorization.

20743056061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227945691.

The product of its (nonzero) digits is 30240, while the sum is 34.

The spelling of 20743056061 in words is "twenty billion, seven hundred forty-three million, fifty-six thousand, sixty-one".