15534413040 has 80 divisors (see below), whose sum is σ = 48216663936. Its totient is φ = 4137350400.

The previous prime is 15534413039. The next prime is 15534413047. The reversal of 15534413040 is 4031443551.

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

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 = 15534412989 and 15534413007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15534413047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154735 + ... + 234545.

Almost surely, 2^15534413040 is an apocalyptic number.

15534413040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15534413040 is an abundant number, since it is smaller than the sum of its proper divisors (32682250896).

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

15534413040 is a wasteful number, since it uses less digits than its factorization.

15534413040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80638 (or 80632 counting only the distinct ones).

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

Adding to 15534413040 its reverse (4031443551), we get a palindrome (19565856591).

The spelling of 15534413040 in words is "fifteen billion, five hundred thirty-four million, four hundred thirteen thousand, forty".