2161525414071 has 8 divisors (see below), whose sum is σ = 2882049750400. Its totient is φ = 1441009010232.

The previous prime is 2161525414049. The next prime is 2161525414099. The reversal of 2161525414071 is 1704145251612.

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

It is not a de Polignac number, because 2161525414071 - 2⁶ = 2161525414007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2161525414271) 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, 1315171 + ... + 2460228.

It is an arithmetic number, because the mean of its divisors is an integer number (360256218800).

Almost surely, 2^{2161525414071} is an apocalyptic number.

2161525414071 is a deficient number, since it is larger than the sum of its proper divisors (720524336329).

2161525414071 is a wasteful number, since it uses less digits than its factorization.

2161525414071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3966245.

The product of its (nonzero) digits is 67200, while the sum is 39.

The spelling of 2161525414071 in words is "two trillion, one hundred sixty-one billion, five hundred twenty-five million, four hundred fourteen thousand, seventy-one".