531101654040 has 32 divisors (see below), whose sum is σ = 1593304962480. Its totient is φ = 141627107712.

The previous prime is 531101654011. The next prime is 531101654059. The reversal of 531101654040 is 40456101135.

It is a happy number.

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 = 531101653989 and 531101654007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2212923439 + ... + 2212923678.

Almost surely, 2^531101654040 is an apocalyptic number.

It is an amenable number.

531101654040 is an abundant number, since it is smaller than the sum of its proper divisors (1062203308440).

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

531101654040 is a wasteful number, since it uses less digits than its factorization.

531101654040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4425847131 (or 4425847127 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 531101654040 its reverse (40456101135), we get a palindrome (571557755175).

The spelling of 531101654040 in words is "five hundred thirty-one billion, one hundred one million, six hundred fifty-four thousand, forty".