140565231165 has 16 divisors (see below), whose sum is σ = 224910088128. Its totient is φ = 74966217216.

The previous prime is 140565231139. The next prime is 140565231199. The reversal of 140565231165 is 561132565041.

It is not a de Polignac number, because 140565231165 - 2⁵ = 140565231133 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 651174 + ... + 839736.

It is an arithmetic number, because the mean of its divisors is an integer number (14056880508).

Almost surely, 2^140565231165 is an apocalyptic number.

140565231165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140565231165 is a deficient number, since it is larger than the sum of its proper divisors (84344856963).

140565231165 is a wasteful number, since it uses less digits than its factorization.

140565231165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238268.

The product of its (nonzero) digits is 108000, while the sum is 39.

The spelling of 140565231165 in words is "one hundred forty billion, five hundred sixty-five million, two hundred thirty-one thousand, one hundred sixty-five".