600001000061 has 12 divisors (see below), whose sum is σ = 606258645972. Its totient is φ = 593807280000.

The previous prime is 600001000051. The next prime is 600001000121. The reversal of 600001000061 is 160000100006.

It can be written as a sum of positive squares in 6 ways, for example, as 117927680836 + 482073319225 = 343406^2 + 694315^2 .

It is not a de Polignac number, because 600001000061 - 2²² = 599996805757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (600001000031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26725601 + ... + 26748041.

It is an arithmetic number, because the mean of its divisors is an integer number (50521553831).

Almost surely, 2^600001000061 is an apocalyptic number.

It is an amenable number.

600001000061 is a deficient number, since it is larger than the sum of its proper divisors (6257645911).

600001000061 is a wasteful number, since it uses less digits than its factorization.

600001000061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25264 (or 25163 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 600001000061 its reverse (160000100006), we get a palindrome (760001100067).

The spelling of 600001000061 in words is "six hundred billion, one million, sixty-one", and thus it is an aban number.