106661571554 has 16 divisors (see below), whose sum is σ = 165732160320. Its totient is φ = 51422469840.

The previous prime is 106661571553. The next prime is 106661571563. The reversal of 106661571554 is 455175166601.

It is a super-2 number, since 2×106661571554² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 106661571499 and 106661571508.

It is not an unprimeable number, because it can be changed into a prime (106661571551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1194452 + ... + 1280639.

It is an arithmetic number, because the mean of its divisors is an integer number (10358260020).

Almost surely, 2^106661571554 is an apocalyptic number.

106661571554 is a deficient number, since it is larger than the sum of its proper divisors (59070588766).

106661571554 is a wasteful number, since it uses less digits than its factorization.

106661571554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2475865.

The product of its (nonzero) digits is 756000, while the sum is 47.

The spelling of 106661571554 in words is "one hundred six billion, six hundred sixty-one million, five hundred seventy-one thousand, five hundred fifty-four".