1445540551320 has 64 divisors (see below), whose sum is σ = 4340575213920. Its totient is φ = 385126052864.

The previous prime is 1445540551249. The next prime is 1445540551381. The reversal of 1445540551320 is 231550455441.

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, 5358867 + ... + 5622146.

Almost surely, 2^{1445540551320} is an apocalyptic number.

1445540551320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1445540551320 is an abundant number, since it is smaller than the sum of its proper divisors (2895034662600).

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

1445540551320 is a wasteful number, since it uses less digits than its factorization.

1445540551320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10982124 (or 10982120 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 39.

The spelling of 1445540551320 in words is "one trillion, four hundred forty-five billion, five hundred forty million, five hundred fifty-one thousand, three hundred twenty".