1066654992 has 120 divisors (see below), whose sum is σ = 3114068544. Its totient is φ = 313876992.

The previous prime is 1066654991. The next prime is 1066654993. The reversal of 1066654992 is 2994566601.

It is an interprime number because it is at equal distance from previous prime (1066654991) and next prime (1066654993).

It is a super-2 number, since 2×1066654992² = 2275505743917040128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (1066654991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 183718 + ... + 189434.

Almost surely, 2^1066654992 is an apocalyptic number.

1066654992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1066654992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1557034272).

1066654992 is an abundant number, since it is smaller than the sum of its proper divisors (2047413552).

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

1066654992 is a wasteful number, since it uses less digits than its factorization.

1066654992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5777 (or 5758 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 48.

The square root of 1066654992 is about 32659.6845055184. The cubic root of 1066654992 is about 1021.7421821748.

The spelling of 1066654992 in words is "one billion, sixty-six million, six hundred fifty-four thousand, nine hundred ninety-two".