6612156745 has 8 divisors (see below), whose sum is σ = 8208194760. Its totient is φ = 5107320960.

The previous prime is 6612156739. The next prime is 6612156757. The reversal of 6612156745 is 5476512166.

It can be written as a sum of positive squares in 4 ways, for example, as 2532907584 + 4079249161 = 50328^2 + 63869^2 .

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

It is not a de Polignac number, because 6612156745 - 2⁵ = 6612156713 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22800396 + ... + 22800685.

It is an arithmetic number, because the mean of its divisors is an integer number (1026024345).

Almost surely, 2^6612156745 is an apocalyptic number.

It is an amenable number.

6612156745 is a deficient number, since it is larger than the sum of its proper divisors (1596038015).

6612156745 is a wasteful number, since it uses less digits than its factorization.

6612156745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45601115.

The product of its digits is 302400, while the sum is 43.

The square root of 6612156745 is about 81315.1692182953. The cubic root of 6612156745 is about 1876.9284332345.

The spelling of 6612156745 in words is "six billion, six hundred twelve million, one hundred fifty-six thousand, seven hundred forty-five".