66433624102 has 4 divisors (see below), whose sum is σ = 99650436156. Its totient is φ = 33216812050.

The previous prime is 66433624087. The next prime is 66433624121. The reversal of 66433624102 is 20142633466.

It is a happy number.

66433624102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×66433624102² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16608406024 + ... + 16608406027.

It is an arithmetic number, because the mean of its divisors is an integer number (24912609039).

Almost surely, 2^66433624102 is an apocalyptic number.

66433624102 is a deficient number, since it is larger than the sum of its proper divisors (33216812054).

66433624102 is a wasteful number, since it uses less digits than its factorization.

66433624102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33216812053.

The product of its (nonzero) digits is 124416, while the sum is 37.

The spelling of 66433624102 in words is "sixty-six billion, four hundred thirty-three million, six hundred twenty-four thousand, one hundred two".