15232151440 has 80 divisors (see below), whose sum is σ = 39532844736. Its totient is φ = 5410137600.

The previous prime is 15232151437. The next prime is 15232151443. The reversal of 15232151440 is 4415123251.

15232151440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (15232151437) and next prime (15232151443).

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 15232151399 and 15232151408.

It is not an unprimeable number, because it can be changed into a prime (15232151443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163431 + ... + 239110.

Almost surely, 2^15232151440 is an apocalyptic number.

15232151440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15232151440 is an abundant number, since it is smaller than the sum of its proper divisors (24300693296).

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

15232151440 is a wasteful number, since it uses less digits than its factorization.

15232151440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402608 (or 402602 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 15232151440 its reverse (4415123251), we get a palindrome (19647274691).

The spelling of 15232151440 in words is "fifteen billion, two hundred thirty-two million, one hundred fifty-one thousand, four hundred forty".