20752220162 has 8 divisors (see below), whose sum is σ = 31174585356. Its totient is φ = 10360691712.

The previous prime is 20752220141. The next prime is 20752220231. The reversal of 20752220162 is 26102225702.

It can be written as a sum of positive squares in 2 ways, for example, as 18165378841 + 2586841321 = 134779^2 + 50861^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7707503 + ... + 7710194.

Almost surely, 2^20752220162 is an apocalyptic number.

20752220162 is a deficient number, since it is larger than the sum of its proper divisors (10422365194).

20752220162 is a wasteful number, since it uses less digits than its factorization.

20752220162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15418372.

The product of its (nonzero) digits is 6720, while the sum is 29.

Adding to 20752220162 its reverse (26102225702), we get a palindrome (46854445864).

The spelling of 20752220162 in words is "twenty billion, seven hundred fifty-two million, two hundred twenty thousand, one hundred sixty-two".