20352442660 has 48 divisors (see below), whose sum is σ = 47709934272. Its totient is φ = 7228771200.

The previous prime is 20352442651. The next prime is 20352442723. The reversal of 20352442660 is 6624425302.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1066251 + ... + 1085170.

It is an arithmetic number, because the mean of its divisors is an integer number (993956964).

Almost surely, 2^20352442660 is an apocalyptic number.

20352442660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20352442660 is an abundant number, since it is smaller than the sum of its proper divisors (27357491612).

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

20352442660 is a wasteful number, since it uses less digits than its factorization.

20352442660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2151484 (or 2151482 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 20352442660 its reverse (6624425302), we get a palindrome (26976867962).

The spelling of 20352442660 in words is "twenty billion, three hundred fifty-two million, four hundred forty-two thousand, six hundred sixty".