15534260240 has 40 divisors (see below), whose sum is σ = 36147155928. Its totient is φ = 6208542720.

The previous prime is 15534260207. The next prime is 15534260251. The reversal of 15534260240 is 4206243551.

It can be written as a sum of positive squares in 4 ways, for example, as 2366238736 + 13168021504 = 48644^2 + 114752^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 15534260197 and 15534260206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17000 + ... + 177080.

Almost surely, 2^15534260240 is an apocalyptic number.

15534260240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15534260240 is an abundant number, since it is smaller than the sum of its proper divisors (20612895688).

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

15534260240 is a wasteful number, since it uses less digits than its factorization.

15534260240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161307 (or 161301 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The spelling of 15534260240 in words is "fifteen billion, five hundred thirty-four million, two hundred sixty thousand, two hundred forty".