20707368405740 has 48 divisors (see below), whose sum is σ = 44382164349600. Its totient is φ = 8113162778112.

The previous prime is 20707368405679. The next prime is 20707368405743. The reversal of 20707368405740 is 4750486370702.

It is not an unprimeable number, because it can be changed into a prime (20707368405743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31349345 + ... + 32003064.

It is an arithmetic number, because the mean of its divisors is an integer number (924628423950).

Almost surely, 2^{20707368405740} is an apocalyptic number.

20707368405740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20707368405740 is an abundant number, since it is smaller than the sum of its proper divisors (23674795943860).

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

20707368405740 is a wasteful number, since it uses less digits than its factorization.

20707368405740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63352754 (or 63352752 counting only the distinct ones).

The product of its (nonzero) digits is 7902720, while the sum is 53.

The spelling of 20707368405740 in words is "twenty trillion, seven hundred seven billion, three hundred sixty-eight million, four hundred five thousand, seven hundred forty".