2661425662 has 16 divisors (see below), whose sum is σ = 4563112320. Its totient is φ = 1140443928.

The previous prime is 2661425639. The next prime is 2661425677. The reversal of 2661425662 is 2665241662.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 159889 + ... + 175747.

It is an arithmetic number, because the mean of its divisors is an integer number (285194520).

Almost surely, 2^2661425662 is an apocalyptic number.

2661425662 is a deficient number, since it is larger than the sum of its proper divisors (1901686658).

2661425662 is a wasteful number, since it uses less digits than its factorization.

2661425662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27855.

The product of its digits is 207360, while the sum is 40.

The square root of 2661425662 is about 51589.0071817631. The cubic root of 2661425662 is about 1385.8134754651.

The spelling of 2661425662 in words is "two billion, six hundred sixty-one million, four hundred twenty-five thousand, six hundred sixty-two".