111668700261 has 8 divisors (see below), whose sum is σ = 148898668320. Its totient is φ = 74442266192.

The previous prime is 111668700259. The next prime is 111668700307. The reversal of 111668700261 is 162007866111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111668700261 - 2¹ = 111668700259 is a prime.

It is a super-2 number, since 2×111668700261² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111668700211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 808866 + ... + 936803.

It is an arithmetic number, because the mean of its divisors is an integer number (18612333540).

Almost surely, 2^111668700261 is an apocalyptic number.

It is an amenable number.

111668700261 is a deficient number, since it is larger than the sum of its proper divisors (37229968059).

111668700261 is a wasteful number, since it uses less digits than its factorization.

111668700261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1766995.

The product of its (nonzero) digits is 24192, while the sum is 39.

The spelling of 111668700261 in words is "one hundred eleven billion, six hundred sixty-eight million, seven hundred thousand, two hundred sixty-one".