136424666 has 16 divisors (see below), whose sum is σ = 234347904. Its totient is φ = 58348464.

The previous prime is 136424653. The next prime is 136424669. The reversal of 136424666 is 666424631.

It is a happy number.

It is a super-2 number, since 2×136424666² = 37223378986423112, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (136424669) 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, 2645 + ... + 16728.

It is an arithmetic number, because the mean of its divisors is an integer number (14646744).

Almost surely, 2^136424666 is an apocalyptic number.

136424666 is a deficient number, since it is larger than the sum of its proper divisors (97923238).

136424666 is a wasteful number, since it uses less digits than its factorization.

136424666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19885.

The product of its digits is 124416, while the sum is 38.

The square root of 136424666 is about 11680.0970030218. The cubic root of 136424666 is about 514.7910246494.

The spelling of 136424666 in words is "one hundred thirty-six million, four hundred twenty-four thousand, six hundred sixty-six".