6662240155 has 8 divisors (see below), whose sum is σ = 7995126384. Its totient is φ = 5329500000.

The previous prime is 6662240119. The next prime is 6662240171. The reversal of 6662240155 is 5510422666.

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

It is not a de Polignac number, because 6662240155 - 2⁷ = 6662240027 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158905 + ... + 196405.

It is an arithmetic number, because the mean of its divisors is an integer number (999390798).

Almost surely, 2^6662240155 is an apocalyptic number.

6662240155 is a deficient number, since it is larger than the sum of its proper divisors (1332886229).

6662240155 is a wasteful number, since it uses less digits than its factorization.

6662240155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73037.

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 6662240155 is about 81622.5468544078. The cubic root of 6662240155 is about 1881.6554148386.

The spelling of 6662240155 in words is "six billion, six hundred sixty-two million, two hundred forty thousand, one hundred fifty-five".