516097980 has 144 divisors (see below), whose sum is σ = 1640830464. Its totient is φ = 136157760.

The previous prime is 516097979. The next prime is 516097993. The reversal of 516097980 is 89790615.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 500065 + ... + 501095.

It is an arithmetic number, because the mean of its divisors is an integer number (11394656).

Almost surely, 2^516097980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 516097980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (820415232).

516097980 is an abundant number, since it is smaller than the sum of its proper divisors (1124732484).

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

516097980 is a wasteful number, since it uses less digits than its factorization.

516097980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158 (or 1144 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The square root of 516097980 is about 22717.7899453270. The cubic root of 516097980 is about 802.1286953794.

The spelling of 516097980 in words is "five hundred sixteen million, ninety-seven thousand, nine hundred eighty".