516650101601 has 8 divisors (see below), whose sum is σ = 521411068200. Its totient is φ = 511889518080.

The previous prime is 516650101589. The next prime is 516650101603. The reversal of 516650101601 is 106101056615.

It can be written as a sum of positive squares in 4 ways, for example, as 100045690000 + 416604411601 = 316300^2 + 645449^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-516650101601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (516650101603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3103985 + ... + 3266193.

It is an arithmetic number, because the mean of its divisors is an integer number (65176383525).

Almost surely, 2^516650101601 is an apocalyptic number.

It is an amenable number.

516650101601 is a deficient number, since it is larger than the sum of its proper divisors (4760966599).

516650101601 is a wasteful number, since it uses less digits than its factorization.

516650101601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191539.

The product of its (nonzero) digits is 5400, while the sum is 32.

The spelling of 516650101601 in words is "five hundred sixteen billion, six hundred fifty million, one hundred one thousand, six hundred one".