1105660020 has 48 divisors (see below), whose sum is σ = 3108224448. Its totient is φ = 293664000.

The previous prime is 1105660001. The next prime is 1105660033. The reversal of 1105660020 is 200665011.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21649 + ... + 51768.

It is an arithmetic number, because the mean of its divisors is an integer number (64754676).

Almost surely, 2^1105660020 is an apocalyptic number.

1105660020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1105660020 is an abundant number, since it is smaller than the sum of its proper divisors (2002564428).

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

1105660020 is a wasteful number, since it uses less digits than its factorization.

1105660020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73680 (or 73678 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1105660020 is about 33251.4664338281. The cubic root of 1105660020 is about 1034.0476104418.

The spelling of 1105660020 in words is "one billion, one hundred five million, six hundred sixty thousand, twenty".