1056661610 has 8 divisors (see below), whose sum is σ = 1901990916. Its totient is φ = 422664640.

The previous prime is 1056661579. The next prime is 1056661631. The reversal of 1056661610 is 161666501.

It can be written as a sum of positive squares in 2 ways, for example, as 982132921 + 74528689 = 31339^2 + 8633^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1056661610² = 2233067516095584200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52833071 + ... + 52833090.

Almost surely, 2^1056661610 is an apocalyptic number.

1056661610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1056661610 is a deficient number, since it is larger than the sum of its proper divisors (845329306).

1056661610 is a wasteful number, since it uses less digits than its factorization.

1056661610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105666168.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 1056661610 is about 32506.3318447345. The cubic root of 1056661610 is about 1018.5412988621.

The spelling of 1056661610 in words is "one billion, fifty-six million, six hundred sixty-one thousand, six hundred ten".