1158164645 has 16 divisors (see below), whose sum is σ = 1517044032. Its totient is φ = 841800960.

The previous prime is 1158164641. The next prime is 1158164659. The reversal of 1158164645 is 5464618511.

It is not a de Polignac number, because 1158164645 - 2² = 1158164641 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 (1158164641) 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, 104909 + ... + 115421.

It is an arithmetic number, because the mean of its divisors is an integer number (94815252).

Almost surely, 2^1158164645 is an apocalyptic number.

It is an amenable number.

1158164645 is a deficient number, since it is larger than the sum of its proper divisors (358879387).

1158164645 is a wasteful number, since it uses less digits than its factorization.

1158164645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12532.

The product of its digits is 115200, while the sum is 41.

The square root of 1158164645 is about 34031.8181265709. The cubic root of 1158164645 is about 1050.1631326280.

The spelling of 1158164645 in words is "one billion, one hundred fifty-eight million, one hundred sixty-four thousand, six hundred forty-five".