15535041240 has 64 divisors (see below), whose sum is σ = 46618092000. Its totient is φ = 4141524992.

The previous prime is 15535041239. The next prime is 15535041259. The reversal of 15535041240 is 4214053551.

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 = 15535041198 and 15535041207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 469894 + ... + 501866.

Almost surely, 2^15535041240 is an apocalyptic number.

15535041240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15535041240 is an abundant number, since it is smaller than the sum of its proper divisors (31083050760).

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

15535041240 is a wasteful number, since it uses less digits than its factorization.

15535041240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36036 (or 36032 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 15535041240 its reverse (4214053551), we get a palindrome (19749094791).

The spelling of 15535041240 in words is "fifteen billion, five hundred thirty-five million, forty-one thousand, two hundred forty".