20343162380 has 24 divisors (see below), whose sum is σ = 42802346832. Its totient is φ = 8121701952.

The previous prime is 20343162373. The next prime is 20343162397. The reversal of 20343162380 is 8326134302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 961967 + ... + 982886.

It is an arithmetic number, because the mean of its divisors is an integer number (1783431118).

Almost surely, 2^20343162380 is an apocalyptic number.

20343162380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20343162380 is an abundant number, since it is smaller than the sum of its proper divisors (22459184452).

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

20343162380 is a wasteful number, since it uses less digits than its factorization.

20343162380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1945385 (or 1945383 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 20343162380 its reverse (8326134302), we get a palindrome (28669296682).

The spelling of 20343162380 in words is "twenty billion, three hundred forty-three million, one hundred sixty-two thousand, three hundred eighty".