2641566477 has 16 divisors (see below), whose sum is σ = 3856900608. Its totient is φ = 1594856880.

The previous prime is 2641566463. The next prime is 2641566503. The reversal of 2641566477 is 7746651462.

It is not a de Polignac number, because 2641566477 - 2⁴ = 2641566461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2641566677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143503 + ... + 160860.

It is an arithmetic number, because the mean of its divisors is an integer number (241056288).

Almost surely, 2^2641566477 is an apocalyptic number.

It is an amenable number.

2641566477 is a deficient number, since it is larger than the sum of its proper divisors (1215334131).

2641566477 is a wasteful number, since it uses less digits than its factorization.

2641566477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304640.

The product of its digits is 1693440, while the sum is 48.

The square root of 2641566477 is about 51396.1718126944. The cubic root of 2641566477 is about 1382.3579510200.

The spelling of 2641566477 in words is "two billion, six hundred forty-one million, five hundred sixty-six thousand, four hundred seventy-seven".