20702417052 has 24 divisors (see below), whose sum is σ = 48313608336. Its totient is φ = 6899667328.

The previous prime is 20702417051. The next prime is 20702417059. The reversal of 20702417052 is 25071420702.

It is a super-3 number, since 3×20702417052³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20702417051) 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, 64833 + ... + 213560.

It is an arithmetic number, because the mean of its divisors is an integer number (2013067014).

Almost surely, 2^20702417052 is an apocalyptic number.

It is an amenable number.

20702417052 is an abundant number, since it is smaller than the sum of its proper divisors (27611191284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20702417052 is a wasteful number, since it uses less digits than its factorization.

20702417052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284597 (or 284595 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 30.

Adding to 20702417052 its reverse (25071420702), we get a palindrome (45773837754).

The spelling of 20702417052 in words is "twenty billion, seven hundred two million, four hundred seventeen thousand, fifty-two".