20460424440880 has 40 divisors (see below), whose sum is σ = 47602478014272. Its totient is φ = 8178665915904.

The previous prime is 20460424440793. The next prime is 20460424440881. The reversal of 20460424440880 is 8804442406402.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 20460424440880.

It is not an unprimeable number, because it can be changed into a prime (20460424440881) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 85878117 + ... + 86116036.

Almost surely, 2^{20460424440880} is an apocalyptic number.

20460424440880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20460424440880 is an abundant number, since it is smaller than the sum of its proper divisors (27142053573392).

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

20460424440880 is a wasteful number, since it uses less digits than its factorization.

20460424440880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171995653 (or 171995647 counting only the distinct ones).

The product of its (nonzero) digits is 1572864, while the sum is 46.

The spelling of 20460424440880 in words is "twenty trillion, four hundred sixty billion, four hundred twenty-four million, four hundred forty thousand, eight hundred eighty".