2661412546 has 8 divisors (see below), whose sum is σ = 4299204924. Its totient is φ = 1228344240.

The previous prime is 2661412529. The next prime is 2661412549. The reversal of 2661412546 is 6452141662.

It can be written as a sum of positive squares in 2 ways, for example, as 2034461025 + 626951521 = 45105^2 + 25039^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2661412549) 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 3 ways as a sum of consecutive naturals, for example, 51180985 + ... + 51181036.

Almost surely, 2^2661412546 is an apocalyptic number.

2661412546 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2661412546 is a deficient number, since it is larger than the sum of its proper divisors (1637792378).

2661412546 is a wasteful number, since it uses less digits than its factorization.

2661412546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102362036.

The product of its digits is 69120, while the sum is 37.

The square root of 2661412546 is about 51588.8800615016. The cubic root of 2661412546 is about 1385.8111989460.

The spelling of 2661412546 in words is "two billion, six hundred sixty-one million, four hundred twelve thousand, five hundred forty-six".