1065055158 has 72 divisors (see below), whose sum is σ = 2489061744. Its totient is φ = 328505760.

The previous prime is 1065055157. The next prime is 1065055163. The reversal of 1065055158 is 8515505601.

1065055158 is a `hidden beast` number, since 1 + 0 + 6 + 50 + 551 + 58 = 666.

It is a super-2 number, since 2×1065055158² = 2268684979164809928, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1065055153) 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, 396516 + ... + 399192.

It is an arithmetic number, because the mean of its divisors is an integer number (34570302).

Almost surely, 2^1065055158 is an apocalyptic number.

1065055158 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1065055158, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1244530872).

1065055158 is an abundant number, since it is smaller than the sum of its proper divisors (1424006586).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1065055158 is a wasteful number, since it uses less digits than its factorization.

1065055158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2770 (or 2736 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 36.

The square root of 1065055158 is about 32635.1828246756. The cubic root of 1065055158 is about 1021.2311028945.

The spelling of 1065055158 in words is "one billion, sixty-five million, fifty-five thousand, one hundred fifty-eight".