115511512354420 has 48 divisors (see below), whose sum is σ = 298552831936128. Its totient is φ = 36557489623680.

The previous prime is 115511512354417. The next prime is 115511512354421. The reversal of 115511512354420 is 24453215115511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115511512354421) 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, 31733930146 + ... + 31733933785.

It is an arithmetic number, because the mean of its divisors is an integer number (6219850665336).

Almost surely, 2^{115511512354420} is an apocalyptic number.

115511512354420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115511512354420 is an abundant number, since it is smaller than the sum of its proper divisors (183041319581708).

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

115511512354420 is a wasteful number, since it uses less digits than its factorization.

115511512354420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63467863960 (or 63467863958 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 40.

Adding to 115511512354420 its reverse (24453215115511), we get a palindrome (139964727469931).

The spelling of 115511512354420 in words is "one hundred fifteen trillion, five hundred eleven billion, five hundred twelve million, three hundred fifty-four thousand, four hundred twenty".