66436136214 has 32 divisors (see below), whose sum is σ = 151906613760. Its totient is φ = 18975179712.

The previous prime is 66436136209. The next prime is 66436136243. The reversal of 66436136214 is 41263163466.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150519 + ... + 394370.

It is an arithmetic number, because the mean of its divisors is an integer number (4747081680).

Almost surely, 2^66436136214 is an apocalyptic number.

66436136214 is an abundant number, since it is smaller than the sum of its proper divisors (85470477546).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66436136214 is a wasteful number, since it uses less digits than its factorization.

66436136214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547804.

The product of its digits is 373248, while the sum is 42.

The spelling of 66436136214 in words is "sixty-six billion, four hundred thirty-six million, one hundred thirty-six thousand, two hundred fourteen".