20737645911348 has 12 divisors (see below), whose sum is σ = 48387840459840. Its totient is φ = 6912548637112.

The previous prime is 20737645911343. The next prime is 20737645911371. The reversal of 20737645911348 is 84311954673702.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 20737645911291 and 20737645911300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20737645911343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 864068579628 + ... + 864068579651.

It is an arithmetic number, because the mean of its divisors is an integer number (4032320038320).

It is a 1-persistent number, because it is pandigital, but 2⋅20737645911348 = 41475291822696 is not.

Almost surely, 2^{20737645911348} is an apocalyptic number.

It is an amenable number.

20737645911348 is an abundant number, since it is smaller than the sum of its proper divisors (27650194548492).

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

20737645911348 is a wasteful number, since it uses less digits than its factorization.

20737645911348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1728137159286 (or 1728137159284 counting only the distinct ones).

The product of its (nonzero) digits is 30481920, while the sum is 60.

The spelling of 20737645911348 in words is "twenty trillion, seven hundred thirty-seven billion, six hundred forty-five million, nine hundred eleven thousand, three hundred forty-eight".