117640611 has 12 divisors (see below), whose sum is σ = 185373240. Its totient is φ = 71297280.

The previous prime is 117640597. The next prime is 117640643. The reversal of 117640611 is 116046711.

117640611 is a `hidden beast` number, since 1 + 1 + 7 + 6 + 40 + 611 = 666.

It is not a de Polignac number, because 117640611 - 2⁶ = 117640547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117640651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 594046 + ... + 594243.

It is an arithmetic number, because the mean of its divisors is an integer number (15447770).

Almost surely, 2^117640611 is an apocalyptic number.

117640611 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

117640611 is a deficient number, since it is larger than the sum of its proper divisors (67732629).

117640611 is a wasteful number, since it uses less digits than its factorization.

117640611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188306 (or 1188303 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 117640611 is about 10846.2256568818. The cubic root of 117640611 is about 489.9883531870.

The spelling of 117640611 in words is "one hundred seventeen million, six hundred forty thousand, six hundred eleven".