1535551004240 has 80 divisors (see below), whose sum is σ = 3908478609216. Its totient is φ = 556409011200.

The previous prime is 1535551004219. The next prime is 1535551004269. The reversal of 1535551004240 is 424001555351.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1535551004240.

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, 2833901 + ... + 3331980.

Almost surely, 2^{1535551004240} is an apocalyptic number.

1535551004240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1535551004240 is an abundant number, since it is smaller than the sum of its proper divisors (2372927604976).

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

1535551004240 is a wasteful number, since it uses less digits than its factorization.

1535551004240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6166188 (or 6166182 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

Adding to 1535551004240 its reverse (424001555351), we get a palindrome (1959552559591).

The spelling of 1535551004240 in words is "one trillion, five hundred thirty-five billion, five hundred fifty-one million, four thousand, two hundred forty".