111037981661207 has 16 divisors (see below), whose sum is σ = 120027556559520. Its totient is φ = 102335294373888.

The previous prime is 111037981661149. The next prime is 111037981661209. The reversal of 111037981661207 is 702166189730111.

It is not a de Polignac number, because 111037981661207 - 2⁶ = 111037981661143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111037981661209) 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 15 ways as a sum of consecutive naturals, for example, 215123288 + ... + 215638829.

It is an arithmetic number, because the mean of its divisors is an integer number (7501722284970).

Almost surely, 2^{111037981661207} is an apocalyptic number.

111037981661207 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

111037981661207 is a deficient number, since it is larger than the sum of its proper divisors (8989574898313).

111037981661207 is a wasteful number, since it uses less digits than its factorization.

111037981661207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430762450.

The product of its (nonzero) digits is 762048, while the sum is 53.

The spelling of 111037981661207 in words is "one hundred eleven trillion, thirty-seven billion, nine hundred eighty-one million, six hundred sixty-one thousand, two hundred seven".