1000660061 has 8 divisors (see below), whose sum is σ = 1056697920. Its totient is φ = 944959392.

The previous prime is 1000660039. The next prime is 1000660091. The reversal of 1000660061 is 1600660001.

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

It is a cyclic number.

It is not a de Polignac number, because 1000660061 - 2⁶ = 1000659997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000660091) 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, 78185 + ... + 90078.

It is an arithmetic number, because the mean of its divisors is an integer number (132087240).

Almost surely, 2^1000660061 is an apocalyptic number.

It is an amenable number.

1000660061 is a deficient number, since it is larger than the sum of its proper divisors (56037859).

1000660061 is a wasteful number, since it uses less digits than its factorization.

1000660061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168595.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 1000660061 is about 31633.2113608467. The cubic root of 1000660061 is about 1000.2199719421.

The spelling of 1000660061 in words is "one billion, six hundred sixty thousand, sixty-one".