660090106 has 8 divisors (see below), whose sum is σ = 1066299444. Its totient is φ = 304656960.

The previous prime is 660090103. The next prime is 660090107. The reversal of 660090106 is 601090066.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 659719225 + 370881 = 25685^2 + 609^2 .

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

It is a zygodrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (660090103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12694015 + ... + 12694066.

Almost surely, 2^660090106 is an apocalyptic number.

660090106 is a deficient number, since it is larger than the sum of its proper divisors (406209338).

660090106 is a wasteful number, since it uses less digits than its factorization.

660090106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25388096.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 660090106 is about 25692.2187831258. The cubic root of 660090106 is about 870.6983893240.

The spelling of 660090106 in words is "six hundred sixty million, ninety thousand, one hundred six".