455556487440 has 160 divisors (see below), whose sum is σ = 1447588598400. Its totient is φ = 118443479040.

The previous prime is 455556487439. The next prime is 455556487459. The reversal of 455556487440 is 44784655554.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16409091 + ... + 16436829.

It is an arithmetic number, because the mean of its divisors is an integer number (9047428740).

Almost surely, 2^455556487440 is an apocalyptic number.

455556487440 is a gapful number since it is divisible by the number (40) 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 455556487440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (723794299200).

455556487440 is an abundant number, since it is smaller than the sum of its proper divisors (992032110960).

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

455556487440 is a wasteful number, since it uses less digits than its factorization.

455556487440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29465 (or 29459 counting only the distinct ones).

The product of its (nonzero) digits is 53760000, while the sum is 57.

The spelling of 455556487440 in words is "four hundred fifty-five billion, five hundred fifty-six million, four hundred eighty-seven thousand, four hundred forty".