2161153671 has 8 divisors (see below), whose sum is σ = 2942847744. Its totient is φ = 1410114360.

The previous prime is 2161153667. The next prime is 2161153681. The reversal of 2161153671 is 1763511612.

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

It is not a de Polignac number, because 2161153671 - 2² = 2161153667 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2161153601) 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, 7663525 + ... + 7663806.

It is an arithmetic number, because the mean of its divisors is an integer number (367855968).

Almost surely, 2^2161153671 is an apocalyptic number.

2161153671 is a deficient number, since it is larger than the sum of its proper divisors (781694073).

2161153671 is a wasteful number, since it uses less digits than its factorization.

2161153671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15327381.

The product of its digits is 7560, while the sum is 33.

The square root of 2161153671 is about 46488.2100214667. The cubic root of 2161153671 is about 1292.8909127641.

The spelling of 2161153671 in words is "two billion, one hundred sixty-one million, one hundred fifty-three thousand, six hundred seventy-one".