111550070657 has 4 divisors (see below), whose sum is σ = 111552162816. Its totient is φ = 111547978500.

The previous prime is 111550070647. The next prime is 111550070689. The reversal of 111550070657 is 756070055111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 756070055111 = 7 ⋅108010007873.

It is a cyclic number.

It is not a de Polignac number, because 111550070657 - 2¹⁶ = 111550005121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111550070657.

It is not an unprimeable number, because it can be changed into a prime (111550070647) 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 3 ways as a sum of consecutive naturals, for example, 963953 + ... + 1073454.

It is an arithmetic number, because the mean of its divisors is an integer number (27888040704).

Almost surely, 2^111550070657 is an apocalyptic number.

It is an amenable number.

111550070657 is a deficient number, since it is larger than the sum of its proper divisors (2092159).

111550070657 is an equidigital number, since it uses as much as digits as its factorization.

111550070657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2092158.

The product of its (nonzero) digits is 36750, while the sum is 38.

The spelling of 111550070657 in words is "one hundred eleven billion, five hundred fifty million, seventy thousand, six hundred fifty-seven".