1065646610 has 48 divisors (see below), whose sum is σ = 2234689560. Its totient is φ = 364815360.

The previous prime is 1065646609. The next prime is 1065646619. The reversal of 1065646610 is 166465601.

1065646610 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 613701529 + 451945081 = 24773^2 + 21259^2 .

It is a super-2 number, since 2×1065646610² = 2271205394808984200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (1065646619) 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, 454040 + ... + 456380.

Almost surely, 2^1065646610 is an apocalyptic number.

1065646610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1065646610 is an abundant number, since it is smaller than the sum of its proper divisors (1169042950).

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

1065646610 is a wasteful number, since it uses less digits than its factorization.

1065646610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3291 (or 3284 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 1065646610 is about 32644.2431371904. The cubic root of 1065646610 is about 1021.4201063782.

The spelling of 1065646610 in words is "one billion, sixty-five million, six hundred forty-six thousand, six hundred ten".