1066544979 has 8 divisors (see below), whose sum is σ = 1422498240. Its totient is φ = 710810856.

The previous prime is 1066544959. The next prime is 1066544989. The reversal of 1066544979 is 9794456601.

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

It is not a de Polignac number, because 1066544979 - 2⁸ = 1066544723 is a prime.

It is a super-2 number, since 2×1066544979² = 2275036384460220882, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1066544959) 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, 43069 + ... + 63150.

It is an arithmetic number, because the mean of its divisors is an integer number (177812280).

Almost surely, 2^1066544979 is an apocalyptic number.

1066544979 is a deficient number, since it is larger than the sum of its proper divisors (355953261).

1066544979 is a wasteful number, since it uses less digits than its factorization.

1066544979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109569.

The product of its (nonzero) digits is 1632960, while the sum is 51.

The square root of 1066544979 is about 32658.0002296528. Note that the first 3 decimals coincide. The cubic root of 1066544979 is about 1021.7070540443.

The spelling of 1066544979 in words is "one billion, sixty-six million, five hundred forty-four thousand, nine hundred seventy-nine".