106661116655 has 16 divisors (see below), whose sum is σ = 132924722304. Its totient is φ = 82100541600.

The previous prime is 106661116589. The next prime is 106661116663. The reversal of 106661116655 is 556611166601.

It is not a de Polignac number, because 106661116655 - 2¹² = 106661112559 is a prime.

It is a super-2 number, since 2×106661116655² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3687821 + ... + 3716630.

It is an arithmetic number, because the mean of its divisors is an integer number (8307795144).

Almost surely, 2^106661116655 is an apocalyptic number.

106661116655 is a deficient number, since it is larger than the sum of its proper divisors (26263605649).

106661116655 is an equidigital number, since it uses as much as digits as its factorization.

106661116655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7404566.

The product of its (nonzero) digits is 194400, while the sum is 44.

The spelling of 106661116655 in words is "one hundred six billion, six hundred sixty-one million, one hundred sixteen thousand, six hundred fifty-five".