20011315347744 has 96 divisors (see below), whose sum is σ = 60169463746560. Its totient is φ = 5704612223232.

The previous prime is 20011315347733. The next prime is 20011315347791. The reversal of 20011315347744 is 44774351311002.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 20011315347696 and 20011315347705.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33312624 + ... + 33908015.

It is an arithmetic number, because the mean of its divisors is an integer number (626765247360).

Almost surely, 2^{20011315347744} is an apocalyptic number.

20011315347744 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20011315347744 is an abundant number, since it is smaller than the sum of its proper divisors (40158148398816).

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

20011315347744 is a wasteful number, since it uses less digits than its factorization.

20011315347744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67221102 (or 67221094 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 42.

Adding to 20011315347744 its reverse (44774351311002), we get a palindrome (64785666658746).

The spelling of 20011315347744 in words is "twenty trillion, eleven billion, three hundred fifteen million, three hundred forty-seven thousand, seven hundred forty-four".