20206210702 has 4 divisors (see below), whose sum is σ = 30309316056. Its totient is φ = 10103105350.

The previous prime is 20206210691. The next prime is 20206210721. The reversal of 20206210702 is 20701260202.

It is a semiprime because it is the product of two primes.

It is a super-4 number, since 4×20206210702⁴ (a number of 42 digits) contains 4444 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5051552674 + ... + 5051552677.

It is an arithmetic number, because the mean of its divisors is an integer number (7577329014).

Almost surely, 2^20206210702 is an apocalyptic number.

20206210702 is a deficient number, since it is larger than the sum of its proper divisors (10103105354).

20206210702 is a wasteful number, since it uses less digits than its factorization.

20206210702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10103105353.

The product of its (nonzero) digits is 672, while the sum is 22.

Multiplying 20206210702 by its sum of digits (22), we get a palindrome (444536635444).

Adding to 20206210702 its reverse (20701260202), we get a palindrome (40907470904).

The spelling of 20206210702 in words is "twenty billion, two hundred six million, two hundred ten thousand, seven hundred two".