1101661010 has 16 divisors (see below), whose sum is σ = 2003434776. Its totient is φ = 436121088.

The previous prime is 1101661009. The next prime is 1101661027. The reversal of 1101661010 is 101661011.

It can be written as a sum of positive squares in 4 ways, for example, as 975750169 + 125910841 = 31237^2 + 11221^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1101661010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 566897 + ... + 568836.

Almost surely, 2^1101661010 is an apocalyptic number.

1101661010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1101661010 is a deficient number, since it is larger than the sum of its proper divisors (901773766).

1101661010 is a wasteful number, since it uses less digits than its factorization.

1101661010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1135837.

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 1101661010 is about 33191.2791256981. The cubic root of 1101661010 is about 1032.7994382695.

Subtracting from 1101661010 its reverse (101661011), we obtain a palindrome (999999999).

The spelling of 1101661010 in words is "one billion, one hundred one million, six hundred sixty-one thousand, ten".