4454429181660 has 240 divisors, whose sum is σ = 15574414695840. Its totient is φ = 1059133501440.

The previous prime is 4454429181649. The next prime is 4454429181673. The reversal of 4454429181660 is 661819244544.

4454429181660 is a `hidden beast` number, since 4 + 4 + 54 + 429 + 1 + 8 + 166 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 4454429181597 and 4454429181606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3733161 + ... + 4779680.

It is an arithmetic number, because the mean of its divisors is an integer number (64893394566).

Almost surely, 2^{4454429181660} is an apocalyptic number.

It is an amenable number.

4454429181660 is an abundant number, since it is smaller than the sum of its proper divisors (11119985514180).

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

4454429181660 is a wasteful number, since it uses less digits than its factorization.

4454429181660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8512898 (or 8512887 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 54.

The spelling of 4454429181660 in words is "four trillion, four hundred fifty-four billion, four hundred twenty-nine million, one hundred eighty-one thousand, six hundred sixty".