1056665450 has 12 divisors (see below), whose sum is σ = 1965397830. Its totient is φ = 422666160.

The previous prime is 1056665443. The next prime is 1056665459. The reversal of 1056665450 is 545666501.

It can be written as a sum of positive squares in 3 ways, for example, as 1033558201 + 23107249 = 32149^2 + 4807^2 .

It is a super-2 number, since 2×1056665450² = 2233083746447405000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1056665459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10566605 + ... + 10566704.

Almost surely, 2^1056665450 is an apocalyptic number.

1056665450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1056665450 is a deficient number, since it is larger than the sum of its proper divisors (908732380).

1056665450 is a wasteful number, since it uses less digits than its factorization.

1056665450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21133321 (or 21133316 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 38.

The square root of 1056665450 is about 32506.3909100964. The cubic root of 1056665450 is about 1018.5425326831.

The spelling of 1056665450 in words is "one billion, fifty-six million, six hundred sixty-five thousand, four hundred fifty".