1066432555 has 8 divisors (see below), whose sum is σ = 1295137872. Its totient is φ = 842866848.

The previous prime is 1066432547. The next prime is 1066432583. The reversal of 1066432555 is 5552346601.

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

It is a cyclic number.

It is not a de Polignac number, because 1066432555 - 2³ = 1066432547 is a prime.

It is a super-2 number, since 2×1066432555² = 2274556788727656050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1284444 + ... + 1285273.

It is an arithmetic number, because the mean of its divisors is an integer number (161892234).

Almost surely, 2^1066432555 is an apocalyptic number.

1066432555 is a deficient number, since it is larger than the sum of its proper divisors (228705317).

1066432555 is an equidigital number, since it uses as much as digits as its factorization.

1066432555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2569805.

The product of its (nonzero) digits is 108000, while the sum is 37.

The square root of 1066432555 is about 32656.2789521403. The cubic root of 1066432555 is about 1021.6711535643.

The spelling of 1066432555 in words is "one billion, sixty-six million, four hundred thirty-two thousand, five hundred fifty-five".