15045133440 has 64 divisors (see below), whose sum is σ = 47956368960. Its totient is φ = 4012035072.

The previous prime is 15045133421. The next prime is 15045133469. The reversal of 15045133440 is 4433154051.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 15045133398 and 15045133407.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3916084 + ... + 3919923.

It is an arithmetic number, because the mean of its divisors is an integer number (749318265).

Almost surely, 2^15045133440 is an apocalyptic number.

15045133440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15045133440 is an abundant number, since it is smaller than the sum of its proper divisors (32911235520).

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

15045133440 is an equidigital number, since it uses as much as digits as its factorization.

15045133440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7836029 (or 7836017 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 15045133440 its reverse (4433154051), we get a palindrome (19478287491).

The spelling of 15045133440 in words is "fifteen billion, forty-five million, one hundred thirty-three thousand, four hundred forty".