1062665641 has 8 divisors (see below), whose sum is σ = 1095924104. Its totient is φ = 1029646080.

The previous prime is 1062665587. The next prime is 1062665657. The reversal of 1062665641 is 1465662601.

It can be written as a sum of positive squares in 4 ways, for example, as 760601241 + 302064400 = 27579^2 + 17380^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1062665641 - 2¹⁷ = 1062534569 is a prime.

It is a super-2 number, since 2×1062665641² = 2258516529123881762, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1062665641.

It is not an unprimeable number, because it can be changed into a prime (1062665341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50670 + ... + 68503.

It is an arithmetic number, because the mean of its divisors is an integer number (136990513).

Almost surely, 2^1062665641 is an apocalyptic number.

It is an amenable number.

1062665641 is a deficient number, since it is larger than the sum of its proper divisors (33258463).

1062665641 is a wasteful number, since it uses less digits than its factorization.

1062665641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119451.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 1062665641 is about 32598.5527439486. The cubic root of 1062665641 is about 1020.4667993462.

It can be divided in two parts, 10626 and 65641, that added together give a palindrome (76267).

The spelling of 1062665641 in words is "one billion, sixty-two million, six hundred sixty-five thousand, six hundred forty-one".