110985157961 has 4 divisors (see below), whose sum is σ = 110986593300. Its totient is φ = 110983722624.

The previous prime is 110985157901. The next prime is 110985157967. The reversal of 110985157961 is 169751589011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 80963011600 + 30022146361 = 284540^2 + 173269^2 .

It is a cyclic number.

It is not a de Polignac number, because 110985157961 - 2¹⁰ = 110985156937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (110985157967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 594656 + ... + 758673.

It is an arithmetic number, because the mean of its divisors is an integer number (27746648325).

Almost surely, 2^110985157961 is an apocalyptic number.

It is an amenable number.

110985157961 is a deficient number, since it is larger than the sum of its proper divisors (1435339).

110985157961 is an equidigital number, since it uses as much as digits as its factorization.

110985157961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1435338.

The product of its (nonzero) digits is 680400, while the sum is 53.

The spelling of 110985157961 in words is "one hundred ten billion, nine hundred eighty-five million, one hundred fifty-seven thousand, nine hundred sixty-one".