10516551666 has 16 divisors (see below), whose sum is σ = 21329345088. Its totient is φ = 3456143600.

The previous prime is 10516551637. The next prime is 10516551673. The reversal of 10516551666 is 66615561501.

It is a super-2 number, since 2×10516551666² (a number of 21 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, 12342945 + ... + 12343796.

It is an arithmetic number, because the mean of its divisors is an integer number (1333084068).

Almost surely, 2^10516551666 is an apocalyptic number.

10516551666 is an abundant number, since it is smaller than the sum of its proper divisors (10812793422).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10516551666 is a wasteful number, since it uses less digits than its factorization.

10516551666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24686817.

The product of its (nonzero) digits is 162000, while the sum is 42.

The spelling of 10516551666 in words is "ten billion, five hundred sixteen million, five hundred fifty-one thousand, six hundred sixty-six".