20393541701 has 4 divisors (see below), whose sum is σ = 21962275692. Its totient is φ = 18824807712.

The previous prime is 20393541671. The next prime is 20393541709. The reversal of 20393541701 is 10714539302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10714539302 = 2 ⋅5357269651.

It can be written as a sum of positive squares in 2 ways, for example, as 2897130625 + 17496411076 = 53825^2 + 132274^2 .

It is a cyclic number.

It is not a de Polignac number, because 20393541701 - 2¹⁰ = 20393540677 is a prime.

It is a super-2 number, since 2×20393541701² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20393541709) 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, 784366976 + ... + 784367001.

It is an arithmetic number, because the mean of its divisors is an integer number (5490568923).

Almost surely, 2^20393541701 is an apocalyptic number.

It is an amenable number.

20393541701 is a deficient number, since it is larger than the sum of its proper divisors (1568733991).

20393541701 is a wasteful number, since it uses less digits than its factorization.

20393541701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1568733990.

The product of its (nonzero) digits is 22680, while the sum is 35.

The spelling of 20393541701 in words is "twenty billion, three hundred ninety-three million, five hundred forty-one thousand, seven hundred one".