511966081 has 8 divisors (see below), whose sum is σ = 560528064. Its totient is φ = 463740720.

The previous prime is 511966073. The next prime is 511966093. The reversal of 511966081 is 180669115.

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 511966081 - 2³ = 511966073 is a prime.

It is a super-2 number, since 2×511966081² = 524218536188997122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 511966081.

It is not an unprimeable number, because it can be changed into a prime (511966681) 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, 80965 + ... + 87058.

It is an arithmetic number, because the mean of its divisors is an integer number (70066008).

Almost surely, 2^511966081 is an apocalyptic number.

It is an amenable number.

511966081 is a deficient number, since it is larger than the sum of its proper divisors (48561983).

511966081 is a wasteful number, since it uses less digits than its factorization.

511966081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168311.

The product of its (nonzero) digits is 12960, while the sum is 37.

The square root of 511966081 is about 22626.6674744647. The cubic root of 511966081 is about 799.9823334640.

The spelling of 511966081 in words is "five hundred eleven million, nine hundred sixty-six thousand, eighty-one".