20446145120 has 48 divisors (see below), whose sum is σ = 48322860768. Its totient is φ = 8175267840.

The previous prime is 20446145101. The next prime is 20446145141. The reversal of 20446145120 is 2154164402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 410192 + ... + 457328.

It is an arithmetic number, because the mean of its divisors is an integer number (1006726266).

Almost surely, 2^20446145120 is an apocalyptic number.

20446145120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20446145120 is an abundant number, since it is smaller than the sum of its proper divisors (27876715648).

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

20446145120 is a wasteful number, since it uses less digits than its factorization.

20446145120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49863 (or 49855 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The spelling of 20446145120 in words is "twenty billion, four hundred forty-six million, one hundred forty-five thousand, one hundred twenty".