115477707312640 has 80 divisors (see below), whose sum is σ = 276882194476800. Its totient is φ = 46190023925760.

The previous prime is 115477707312631. The next prime is 115477707312641. The reversal of 115477707312640 is 46213707774511.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115477707312641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116321086 + ... + 117309634.

It is an arithmetic number, because the mean of its divisors is an integer number (3461027430960).

Almost surely, 2^{115477707312640} is an apocalyptic number.

115477707312640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115477707312640 is an abundant number, since it is smaller than the sum of its proper divisors (161404487164160).

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

115477707312640 is an frugal number, since it uses more digits than its factorization.

115477707312640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034203 (or 1034187 counting only the distinct ones).

The product of its (nonzero) digits is 6914880, while the sum is 55.

The spelling of 115477707312640 in words is "one hundred fifteen trillion, four hundred seventy-seven billion, seven hundred seven million, three hundred twelve thousand, six hundred forty".