106151661666 has 12 divisors (see below), whose sum is σ = 229995266982. Its totient is φ = 35383887216.

The previous prime is 106151661631. The next prime is 106151661667. The reversal of 106151661666 is 666166151601.

It can be written as a sum of positive squares in only one way, i.e., 78436404225 + 27715257441 = 280065^2 + 166479^2 .

It is a super-2 number, since 2×106151661666² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (106151661667) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2948657251 + ... + 2948657286.

Almost surely, 2^106151661666 is an apocalyptic number.

106151661666 is an abundant number, since it is smaller than the sum of its proper divisors (123843605316).

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

106151661666 is a wasteful number, since it uses less digits than its factorization.

106151661666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5897314545 (or 5897314542 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 106151661666 in words is "one hundred six billion, one hundred fifty-one million, six hundred sixty-one thousand, six hundred sixty-six".