1066666624 has 32 divisors (see below), whose sum is σ = 2126700000. Its totient is φ = 532906752.

The previous prime is 1066666613. The next prime is 1066666637. The reversal of 1066666624 is 4266666601.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×1066666624² = 2275555373511114752, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210877 + ... + 215875.

It is an arithmetic number, because the mean of its divisors is an integer number (66459375).

Almost surely, 2^1066666624 is an apocalyptic number.

It is an amenable number.

1066666624 is a deficient number, since it is larger than the sum of its proper divisors (1060033376).

1066666624 is an equidigital number, since it uses as much as digits as its factorization.

1066666624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6680 (or 6668 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 43.

The square root of 1066666624 is about 32659.8625839118. The cubic root of 1066666624 is about 1021.7458962348.

The spelling of 1066666624 in words is "one billion, sixty-six million, six hundred sixty-six thousand, six hundred twenty-four".