511166542 has 8 divisors (see below), whose sum is σ = 784581336. Its totient is φ = 249639432.

The previous prime is 511166497. The next prime is 511166549. The reversal of 511166542 is 245661115.

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

It is a super-2 number, since 2×511166542² = 522582467320475528, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511166549) 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 3 ways as a sum of consecutive naturals, for example, 2971813 + ... + 2971984.

It is an arithmetic number, because the mean of its divisors is an integer number (98072667).

Almost surely, 2^511166542 is an apocalyptic number.

511166542 is a deficient number, since it is larger than the sum of its proper divisors (273414794).

511166542 is a wasteful number, since it uses less digits than its factorization.

511166542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5943842.

The product of its digits is 7200, while the sum is 31.

The square root of 511166542 is about 22608.9925029843. The cubic root of 511166542 is about 799.5656715328.

The spelling of 511166542 in words is "five hundred eleven million, one hundred sixty-six thousand, five hundred forty-two".