6615505650566 has 8 divisors (see below), whose sum is σ = 9939824852400. Its totient is φ = 3302230699768.

The previous prime is 6615505650541. The next prime is 6615505650641. The reversal of 6615505650566 is 6650565055166.

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

It is a super-2 number, since 2×6615505650566² (a number of 26 digits) contains 22 as substring.

It is a congruent 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, 2761061261 + ... + 2761063656.

It is an arithmetic number, because the mean of its divisors is an integer number (1242478106550).

Almost surely, 2^{6615505650566} is an apocalyptic number.

6615505650566 is a deficient number, since it is larger than the sum of its proper divisors (3324319201834).

6615505650566 is a wasteful number, since it uses less digits than its factorization.

6615505650566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5522125518.

The product of its (nonzero) digits is 24300000, while the sum is 56.

The spelling of 6615505650566 in words is "six trillion, six hundred fifteen billion, five hundred five million, six hundred fifty thousand, five hundred sixty-six".