1066235958 has 48 divisors (see below), whose sum is σ = 2471679600. Its totient is φ = 331179840.

The previous prime is 1066235899. The next prime is 1066235959. The reversal of 1066235958 is 8595326601.

1066235958 is a `hidden beast` number, since 10 + 6 + 623 + 5 + 9 + 5 + 8 = 666.

It is a super-2 number, since 2×1066235958² = 2273718236264355528, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066235959) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4693 + ... + 46416.

It is an arithmetic number, because the mean of its divisors is an integer number (51493325).

Almost surely, 2^1066235958 is an apocalyptic number.

1066235958 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1066235958 is an abundant number, since it is smaller than the sum of its proper divisors (1405443642).

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

1066235958 is a wasteful number, since it uses less digits than its factorization.

1066235958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51197 (or 51194 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The square root of 1066235958 is about 32653.2687184606. The cubic root of 1066235958 is about 1021.6083679630.

The spelling of 1066235958 in words is "one billion, sixty-six million, two hundred thirty-five thousand, nine hundred fifty-eight".