511666051 has 8 divisors (see below), whose sum is σ = 583438464. Its totient is φ = 444524160.

The previous prime is 511666049. The next prime is 511666061. The reversal of 511666051 is 150666115.

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

It is not a de Polignac number, because 511666051 - 2¹ = 511666049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (511666021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1157395 + ... + 1157836.

It is an arithmetic number, because the mean of its divisors is an integer number (72929808).

Almost surely, 2^511666051 is an apocalyptic number.

511666051 is a deficient number, since it is larger than the sum of its proper divisors (71772413).

511666051 is a wasteful number, since it uses less digits than its factorization.

511666051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2315261.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 511666051 is about 22620.0364942234. The cubic root of 511666051 is about 799.8260304001.

The spelling of 511666051 in words is "five hundred eleven million, six hundred sixty-six thousand, fifty-one".