20229215644848 has 160 divisors (see below), whose sum is σ = 60374703628800. Its totient is φ = 5717160529920.

The previous prime is 20229215644819. The next prime is 20229215644907. The reversal of 20229215644848 is 84844651292202.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11227111 + ... + 12903737.

It is an arithmetic number, because the mean of its divisors is an integer number (377341897680).

Almost surely, 2^{20229215644848} is an apocalyptic number.

20229215644848 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20229215644848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30187351814400).

20229215644848 is an abundant number, since it is smaller than the sum of its proper divisors (40145487983952).

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

20229215644848 is a wasteful number, since it uses less digits than its factorization.

20229215644848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1677035 (or 1677029 counting only the distinct ones).

The product of its (nonzero) digits is 17694720, while the sum is 57.

The spelling of 20229215644848 in words is "twenty trillion, two hundred twenty-nine billion, two hundred fifteen million, six hundred forty-four thousand, eight hundred forty-eight".