5551666516610 has 16 divisors (see below), whose sum is σ = 10427477979456. Its totient is φ = 2124115884528.

The previous prime is 5551666516603. The next prime is 5551666516651. The reversal of 5551666516610 is 166156661555.

It is a super-2 number, since 2×5551666516610² (a number of 26 digits) contains 22 as substring.

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, 12068840024 + ... + 12068840483.

It is an arithmetic number, because the mean of its divisors is an integer number (651717373716).

Almost surely, 2^{5551666516610} is an apocalyptic number.

5551666516610 is a deficient number, since it is larger than the sum of its proper divisors (4875811462846).

5551666516610 is a wasteful number, since it uses less digits than its factorization.

5551666516610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24137680537.

The product of its (nonzero) digits is 4860000, while the sum is 53.

The spelling of 5551666516610 in words is "five trillion, five hundred fifty-one billion, six hundred sixty-six million, five hundred sixteen thousand, six hundred ten".