117061471645 has 8 divisors (see below), whose sum is σ = 143899955640. Its totient is φ = 91365050880.

The previous prime is 117061471559. The next prime is 117061471649. The reversal of 117061471645 is 546174160711.

It can be written as a sum of positive squares in 4 ways, for example, as 2217750649 + 114843720996 = 47093^2 + 338886^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 117061471645 - 2¹⁵ = 117061438877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117061471649) 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, 285515580 + ... + 285515989.

It is an arithmetic number, because the mean of its divisors is an integer number (17987494455).

Almost surely, 2^117061471645 is an apocalyptic number.

It is an amenable number.

117061471645 is a deficient number, since it is larger than the sum of its proper divisors (26838483995).

117061471645 is an equidigital number, since it uses as much as digits as its factorization.

117061471645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571031615.

The product of its (nonzero) digits is 141120, while the sum is 43.

The spelling of 117061471645 in words is "one hundred seventeen billion, sixty-one million, four hundred seventy-one thousand, six hundred forty-five".