20368126340 has 24 divisors (see below), whose sum is σ = 42830051712. Its totient is φ = 8136396000.

The previous prime is 20368126321. The next prime is 20368126367. The reversal of 20368126340 is 4362186302.

It is a self number, because there is not a number n which added to its sum of digits gives 20368126340.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 663014 + ... + 693053.

It is an arithmetic number, because the mean of its divisors is an integer number (1784585488).

Almost surely, 2^20368126340 is an apocalyptic number.

20368126340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20368126340 is an abundant number, since it is smaller than the sum of its proper divisors (22461925372).

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

20368126340 is a wasteful number, since it uses less digits than its factorization.

20368126340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356827 (or 1356825 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 20368126340 in words is "twenty billion, three hundred sixty-eight million, one hundred twenty-six thousand, three hundred forty".