45505420744640 has 56 divisors (see below), whose sum is σ = 108368283024240. Its totient is φ = 18200740497408.

The previous prime is 45505420744633. The next prime is 45505420744643. The reversal of 45505420744640 is 4644702450554.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45505420744643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1486805 + ... + 9655124.

Almost surely, 2^{45505420744640} is an apocalyptic number.

45505420744640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45505420744640 is an abundant number, since it is smaller than the sum of its proper divisors (62862862279600).

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

45505420744640 is a wasteful number, since it uses less digits than its factorization.

45505420744640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11154709 (or 11154699 counting only the distinct ones).

The product of its (nonzero) digits is 10752000, while the sum is 50.

The spelling of 45505420744640 in words is "forty-five trillion, five hundred five billion, four hundred twenty million, seven hundred forty-four thousand, six hundred forty".