660410061 has 8 divisors (see below), whose sum is σ = 882176544. Its totient is φ = 439458480.

The previous prime is 660410029. The next prime is 660410071. The reversal of 660410061 is 160014066.

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

It is not a de Polignac number, because 660410061 - 2⁵ = 660410029 is a prime.

It is a super-2 number, since 2×660410061² = 872282897340047442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660410021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201831 + ... + 205076.

It is an arithmetic number, because the mean of its divisors is an integer number (110272068).

Almost surely, 2^660410061 is an apocalyptic number.

It is an amenable number.

660410061 is a deficient number, since it is larger than the sum of its proper divisors (221766483).

660410061 is a wasteful number, since it uses less digits than its factorization.

660410061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407451.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 660410061 is about 25698.4447194767. Note that the first 3 decimals coincide. The cubic root of 660410061 is about 870.8390465371.

The spelling of 660410061 in words is "six hundred sixty million, four hundred ten thousand, sixty-one".