516440155 has 48 divisors (see below), whose sum is σ = 797817600. Its totient is φ = 317284800.

The previous prime is 516440107. The next prime is 516440189. The reversal of 516440155 is 551044615.

It is not a de Polignac number, because 516440155 - 2¹⁹ = 515915867 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 189996 + ... + 192694.

It is an arithmetic number, because the mean of its divisors is an integer number (16621200).

Almost surely, 2^516440155 is an apocalyptic number.

516440155 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

516440155 is a deficient number, since it is larger than the sum of its proper divisors (281377445).

516440155 is a wasteful number, since it uses less digits than its factorization.

516440155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2800 (or 2793 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 516440155 is about 22725.3196897205. The cubic root of 516440155 is about 802.3059277148.

The spelling of 516440155 in words is "five hundred sixteen million, four hundred forty thousand, one hundred fifty-five".