1055605660 has 12 divisors (see below), whose sum is σ = 2216771928. Its totient is φ = 422242256.

The previous prime is 1055605643. The next prime is 1055605669. The reversal of 1055605660 is 665065501.

It is a super-2 number, since 2×1055605660² = 2228606618848071200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055605669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26390122 + ... + 26390161.

It is an arithmetic number, because the mean of its divisors is an integer number (184730994).

Almost surely, 2^1055605660 is an apocalyptic number.

1055605660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1055605660 is an abundant number, since it is smaller than the sum of its proper divisors (1161166268).

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

1055605660 is a wasteful number, since it uses less digits than its factorization.

1055605660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52780292 (or 52780290 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 1055605660 is about 32490.0855646765. The cubic root of 1055605660 is about 1018.2019006601.

The spelling of 1055605660 in words is "one billion, fifty-five million, six hundred five thousand, six hundred sixty".