1097168555 has 36 divisors (see below), whose sum is σ = 1550395440. Its totient is φ = 743198400.

The previous prime is 1097168539. The next prime is 1097168557. The reversal of 1097168555 is 5558617901.

It is not a de Polignac number, because 1097168555 - 2⁴ = 1097168539 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1097168557) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2499026 + ... + 2499464.

It is an arithmetic number, because the mean of its divisors is an integer number (43066540).

Almost surely, 2^1097168555 is an apocalyptic number.

1097168555 is a deficient number, since it is larger than the sum of its proper divisors (453226885).

1097168555 is an equidigital number, since it uses as much as digits as its factorization.

1097168555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660 (or 552 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 47.

The square root of 1097168555 is about 33123.5347600464. The cubic root of 1097168555 is about 1031.3936440005.

The spelling of 1097168555 in words is "one billion, ninety-seven million, one hundred sixty-eight thousand, five hundred fifty-five".