6611550115 has 4 divisors (see below), whose sum is σ = 7933860144. Its totient is φ = 5289240088.

The previous prime is 6611550083. The next prime is 6611550149. The reversal of 6611550115 is 5110551166.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6611550115 - 2⁵ = 6611550083 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 661155007 + ... + 661155016.

It is an arithmetic number, because the mean of its divisors is an integer number (1983465036).

Almost surely, 2^6611550115 is an apocalyptic number.

6611550115 is a deficient number, since it is larger than the sum of its proper divisors (1322310029).

6611550115 is a wasteful number, since it uses less digits than its factorization.

6611550115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1322310028.

The product of its (nonzero) digits is 4500, while the sum is 31.

The square root of 6611550115 is about 81311.4390169059. The cubic root of 6611550115 is about 1876.8710320990.

The spelling of 6611550115 in words is "six billion, six hundred eleven million, five hundred fifty thousand, one hundred fifteen".