3640043233161 has 16 divisors (see below), whose sum is σ = 5392686016320. Its totient is φ = 2426682270240.

The previous prime is 3640043233153. The next prime is 3640043233163. The reversal of 3640043233161 is 1613323400463.

3640043233161 is a `hidden beast` number, since 3 + 6 + 400 + 4 + 3 + 233 + 16 + 1 = 666.

It is not a de Polignac number, because 3640043233161 - 2³ = 3640043233153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3640043233163) 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, 9661821 + ... + 10031493.

It is an arithmetic number, because the mean of its divisors is an integer number (337042876020).

Almost surely, 2^{3640043233161} is an apocalyptic number.

It is an amenable number.

3640043233161 is a deficient number, since it is larger than the sum of its proper divisors (1752642783159).

3640043233161 is a wasteful number, since it uses less digits than its factorization.

3640043233161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734373 (or 734367 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 36.

The spelling of 3640043233161 in words is "three trillion, six hundred forty billion, forty-three million, two hundred thirty-three thousand, one hundred sixty-one".