6550601661505 has 8 divisors (see below), whose sum is σ = 8575333084224. Its totient is φ = 4764073935600.

The previous prime is 6550601661473. The next prime is 6550601661529. The reversal of 6550601661505 is 5051661060556.

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

It is not a de Polignac number, because 6550601661505 - 2⁵ = 6550601661473 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59550924141 + ... + 59550924250.

It is an arithmetic number, because the mean of its divisors is an integer number (1071916635528).

Almost surely, 2^{6550601661505} is an apocalyptic number.

It is an amenable number.

6550601661505 is a deficient number, since it is larger than the sum of its proper divisors (2024731422719).

6550601661505 is a wasteful number, since it uses less digits than its factorization.

6550601661505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119101848407.

The product of its (nonzero) digits is 810000, while the sum is 46.

The spelling of 6550601661505 in words is "six trillion, five hundred fifty billion, six hundred one million, six hundred sixty-one thousand, five hundred five".