20146645010740 has 48 divisors (see below), whose sum is σ = 44198904798720. Its totient is φ = 7704741018240.

The previous prime is 20146645010731. The next prime is 20146645010753. The reversal of 20146645010740 is 4701054664102.

It is a junction number, because it is equal to n+sod(n) for n = 20146645010693 and 20146645010702.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195699075 + ... + 195801994.

It is an arithmetic number, because the mean of its divisors is an integer number (920810516640).

Almost surely, 2^{20146645010740} is an apocalyptic number.

20146645010740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20146645010740 is an abundant number, since it is smaller than the sum of its proper divisors (24052259787980).

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

20146645010740 is a wasteful number, since it uses less digits than its factorization.

20146645010740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391501192 (or 391501190 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

Adding to 20146645010740 its reverse (4701054664102), we get a palindrome (24847699674842).

The spelling of 20146645010740 in words is "twenty trillion, one hundred forty-six billion, six hundred forty-five million, ten thousand, seven hundred forty".