20343664261460 has 24 divisors (see below), whose sum is σ = 42728430466176. Its totient is φ = 8136182748960.

The previous prime is 20343664261441. The next prime is 20343664261489. The reversal of 20343664261460 is 6416246634302.

It is a happy number.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80054696 + ... + 80308415.

It is an arithmetic number, because the mean of its divisors is an integer number (1780351269424).

Almost surely, 2^{20343664261460} is an apocalyptic number.

20343664261460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20343664261460 is an abundant number, since it is smaller than the sum of its proper divisors (22384766204716).

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

20343664261460 is a wasteful number, since it uses less digits than its factorization.

20343664261460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160369463 (or 160369461 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 47.

The spelling of 20343664261460 in words is "twenty trillion, three hundred forty-three billion, six hundred sixty-four million, two hundred sixty-one thousand, four hundred sixty".