1170164555 has 16 divisors (see below), whose sum is σ = 1605365760. Its totient is φ = 802114272.

The previous prime is 1170164551. The next prime is 1170164573. The reversal of 1170164555 is 5554610711.

It is a cyclic number.

It is not a de Polignac number, because 1170164555 - 2² = 1170164551 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (1170164551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158762 + ... + 165968.

It is an arithmetic number, because the mean of its divisors is an integer number (100335360).

Almost surely, 2^1170164555 is an apocalyptic number.

1170164555 is a deficient number, since it is larger than the sum of its proper divisors (435201205).

1170164555 is an equidigital number, since it uses as much as digits as its factorization.

1170164555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11858.

The product of its (nonzero) digits is 21000, while the sum is 35.

The square root of 1170164555 is about 34207.6680731090. The cubic root of 1170164555 is about 1053.7776413551. Note that the first 3 decimals are identical.

The spelling of 1170164555 in words is "one billion, one hundred seventy million, one hundred sixty-four thousand, five hundred fifty-five".