10111671661 has 16 divisors (see below), whose sum is σ = 12568364928. Its totient is φ = 7921224000.

The previous prime is 10111671659. The next prime is 10111671673. The reversal of 10111671661 is 16617611101.

It is a cyclic number.

It is not a de Polignac number, because 10111671661 - 2¹ = 10111671659 is a prime.

It is a super-3 number, since 3×10111671661³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10111671601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 540895 + ... + 559276.

It is an arithmetic number, because the mean of its divisors is an integer number (785522808).

Almost surely, 2^10111671661 is an apocalyptic number.

It is an amenable number.

10111671661 is a deficient number, since it is larger than the sum of its proper divisors (2456693267).

10111671661 is a wasteful number, since it uses less digits than its factorization.

10111671661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100292.

The product of its (nonzero) digits is 1512, while the sum is 31.

The spelling of 10111671661 in words is "ten billion, one hundred eleven million, six hundred seventy-one thousand, six hundred sixty-one".