20701017773 has 8 divisors (see below), whose sum is σ = 22008630528. Its totient is φ = 19427369104.

The previous prime is 20701017751. The next prime is 20701017787. The reversal of 20701017773 is 37771010702.

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 20701017773 - 2¹² = 20701013677 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20701017973) 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, 8489765 + ... + 8492202.

It is an arithmetic number, because the mean of its divisors is an integer number (2751078816).

Almost surely, 2^20701017773 is an apocalyptic number.

20701017773 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20701017773 is a deficient number, since it is larger than the sum of its proper divisors (1307612755).

20701017773 is a wasteful number, since it uses less digits than its factorization.

20701017773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16982043.

The product of its (nonzero) digits is 14406, while the sum is 35.

The spelling of 20701017773 in words is "twenty billion, seven hundred one million, seventeen thousand, seven hundred seventy-three".