45455004640640 has 128 divisors (see below), whose sum is σ = 124200779008320. Its totient is φ = 15583165931520.

The previous prime is 45455004640607. The next prime is 45455004640667. The reversal of 45455004640640 is 4604640055454.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49781810 + ... + 50686670.

Almost surely, 2^{45455004640640} is an apocalyptic number.

45455004640640 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 45455004640640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62100389504160).

45455004640640 is an abundant number, since it is smaller than the sum of its proper divisors (78745774367680).

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

45455004640640 is a wasteful number, since it uses less digits than its factorization.

45455004640640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916100 (or 916088 counting only the distinct ones).

The product of its (nonzero) digits is 4608000, while the sum is 47.

The spelling of 45455004640640 in words is "forty-five trillion, four hundred fifty-five billion, four million, six hundred forty thousand, six hundred forty".