2641587166 has 4 divisors (see below), whose sum is σ = 3962380752. Its totient is φ = 1320793582.

The previous prime is 2641587103. The next prime is 2641587167. The reversal of 2641587166 is 6617851462.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2641587167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660396790 + ... + 660396793.

It is an arithmetic number, because the mean of its divisors is an integer number (990595188).

Almost surely, 2^2641587166 is an apocalyptic number.

2641587166 is a deficient number, since it is larger than the sum of its proper divisors (1320793586).

2641587166 is a wasteful number, since it uses less digits than its factorization.

2641587166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320793585.

The product of its digits is 483840, while the sum is 46.

The square root of 2641587166 is about 51396.3730821543. The cubic root of 2641587166 is about 1382.3615599302.

The spelling of 2641587166 in words is "two billion, six hundred forty-one million, five hundred eighty-seven thousand, one hundred sixty-six".