1500223545440 has 24 divisors (see below), whose sum is σ = 3544278126480. Its totient is φ = 600089418112.

The previous prime is 1500223545409. The next prime is 1500223545463. The reversal of 1500223545440 is 445453220051.

It is a self number, because there is not a number n which added to its sum of digits gives 1500223545440.

It is a congruent number.

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, 4688198420 + ... + 4688198739.

It is an arithmetic number, because the mean of its divisors is an integer number (147678255270).

Almost surely, 2^{1500223545440} is an apocalyptic number.

1500223545440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1500223545440 is an abundant number, since it is smaller than the sum of its proper divisors (2044054581040).

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

1500223545440 is an equidigital number, since it uses as much as digits as its factorization.

1500223545440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9376397174 (or 9376397166 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 35.

Adding to 1500223545440 its reverse (445453220051), we get a palindrome (1945676765491).

The spelling of 1500223545440 in words is "one trillion, five hundred billion, two hundred twenty-three million, five hundred forty-five thousand, four hundred forty".