115651210040 has 64 divisors (see below), whose sum is σ = 280892059200. Its totient is φ = 42723315712.

The previous prime is 115651210019. The next prime is 115651210049. The reversal of 115651210040 is 40012156511.

It is a junction number, because it is equal to n+sod(n) for n = 115651209991 and 115651210009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115651210049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2140697 + ... + 2194056.

It is an arithmetic number, because the mean of its divisors is an integer number (4388938425).

Almost surely, 2^115651210040 is an apocalyptic number.

115651210040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115651210040 is an abundant number, since it is smaller than the sum of its proper divisors (165240849160).

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

115651210040 is a wasteful number, since it uses less digits than its factorization.

115651210040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4334816 (or 4334812 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 26.

Adding to 115651210040 its reverse (40012156511), we get a palindrome (155663366551).

The spelling of 115651210040 in words is "one hundred fifteen billion, six hundred fifty-one million, two hundred ten thousand, forty".