1445671565420 has 12 divisors (see below), whose sum is σ = 3035910287424. Its totient is φ = 578268626160.

The previous prime is 1445671565411. The next prime is 1445671565431. The reversal of 1445671565420 is 245651765441.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36141789116 + ... + 36141789155.

It is an arithmetic number, because the mean of its divisors is an integer number (252992523952).

Almost surely, 2^{1445671565420} is an apocalyptic number.

1445671565420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1445671565420 is an abundant number, since it is smaller than the sum of its proper divisors (1590238722004).

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

1445671565420 is a wasteful number, since it uses less digits than its factorization.

1445671565420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72283578280 (or 72283578278 counting only the distinct ones).

The product of its (nonzero) digits is 4032000, while the sum is 50.

The spelling of 1445671565420 in words is "one trillion, four hundred forty-five billion, six hundred seventy-one million, five hundred sixty-five thousand, four hundred twenty".