2162661541 has 4 divisors (see below), whose sum is σ = 2163032352. Its totient is φ = 2162290732.

The previous prime is 2162661533. The next prime is 2162661559. The reversal of 2162661541 is 1451662612.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2162661541 - 2³ = 2162661533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2162661497 and 2162661506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2162661521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176515 + ... + 188368.

It is an arithmetic number, because the mean of its divisors is an integer number (540758088).

Almost surely, 2^2162661541 is an apocalyptic number.

It is an amenable number.

2162661541 is a deficient number, since it is larger than the sum of its proper divisors (370811).

2162661541 is an equidigital number, since it uses as much as digits as its factorization.

2162661541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370810.

The product of its digits is 17280, while the sum is 34.

The square root of 2162661541 is about 46504.4249615023. The cubic root of 2162661541 is about 1293.1915327865.

The spelling of 2162661541 in words is "two billion, one hundred sixty-two million, six hundred sixty-one thousand, five hundred forty-one".