1066564090 has 32 divisors (see below), whose sum is σ = 1932128640. Its totient is φ = 423900864.

The previous prime is 1066564087. The next prime is 1066564153. The reversal of 1066564090 is 904656601.

It is a super-2 number, since 2×1066564090² = 2275117916155056200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1894149 + ... + 1894711.

It is an arithmetic number, because the mean of its divisors is an integer number (60379020).

Almost surely, 2^1066564090 is an apocalyptic number.

1066564090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1066564090 is a deficient number, since it is larger than the sum of its proper divisors (865564550).

1066564090 is a wasteful number, since it uses less digits than its factorization.

1066564090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1446.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 1066564090 is about 32658.2928212728. The cubic root of 1066564090 is about 1021.7131565301.

The spelling of 1066564090 in words is "one billion, sixty-six million, five hundred sixty-four thousand, ninety".