516158478 has 48 divisors (see below), whose sum is σ = 1221620400. Its totient is φ = 156205440.

The previous prime is 516158459. The next prime is 516158483. The reversal of 516158478 is 874851615.

516158478 is a `hidden beast` number, since 5 + 1 + 61 + 584 + 7 + 8 = 666.

It is a super-2 number, since 2×516158478² = 532839148822552968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 222388 + ... + 224696.

It is an arithmetic number, because the mean of its divisors is an integer number (25450425).

Almost surely, 2^516158478 is an apocalyptic number.

516158478 is an abundant number, since it is smaller than the sum of its proper divisors (705461922).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

516158478 is a wasteful number, since it uses less digits than its factorization.

516158478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3457 (or 3454 counting only the distinct ones).

The product of its digits is 268800, while the sum is 45.

The square root of 516158478 is about 22719.1214178718. The cubic root of 516158478 is about 802.1600365121.

It can be divided in two parts, 516158 and 478, that added together give a triangular number (516636 = T₁₀₁₆).

The spelling of 516158478 in words is "five hundred sixteen million, one hundred fifty-eight thousand, four hundred seventy-eight".