1066699884 has 24 divisors (see below), whose sum is σ = 2635376688. Its totient is φ = 334650880.

The previous prime is 1066699883. The next prime is 1066699891. The reversal of 1066699884 is 4889966601.

It is a super-2 number, since 2×1066699884² = 2275697285051226912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1066699883) 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, 2614257 + ... + 2614664.

It is an arithmetic number, because the mean of its divisors is an integer number (109807362).

Almost surely, 2^1066699884 is an apocalyptic number.

It is an amenable number.

1066699884 is an abundant number, since it is smaller than the sum of its proper divisors (1568676804).

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

1066699884 is a wasteful number, since it uses less digits than its factorization.

1066699884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5228945 (or 5228943 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 57.

The square root of 1066699884 is about 32660.3717676330. The cubic root of 1066699884 is about 1021.7565158962.

The spelling of 1066699884 in words is "one billion, sixty-six million, six hundred ninety-nine thousand, eight hundred eighty-four".