5166581000 has 64 divisors (see below), whose sum is σ = 13816932480. Its totient is φ = 1771396800.

The previous prime is 5166580997. The next prime is 5166581003. The reversal of 5166581000 is 1856615.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (5166580997) and next prime (5166581003).

It is a super-2 number, since 2×5166581000² = 53387118459122000000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5166581003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 362042 + ... + 376041.

It is an arithmetic number, because the mean of its divisors is an integer number (215889570).

Almost surely, 2^5166581000 is an apocalyptic number.

5166581000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

5166581000 is an abundant number, since it is smaller than the sum of its proper divisors (8650351480).

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

5166581000 is a wasteful number, since it uses less digits than its factorization.

5166581000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738111 (or 738097 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 5166581000 is about 71878.9329358749. The cubic root of 5166581000 is about 1728.7588411290.

The spelling of 5166581000 in words is "five billion, one hundred sixty-six million, five hundred eighty-one thousand".