66032434858 has 16 divisors (see below), whose sum is σ = 112942355400. Its totient is φ = 28683772416.

The previous prime is 66032434823. The next prime is 66032434873. The reversal of 66032434858 is 85843423066.

It can be written as a sum of positive squares in 4 ways, for example, as 56260519249 + 9771915609 = 237193^2 + 98853^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74696883 + ... + 74697766.

Almost surely, 2^66032434858 is an apocalyptic number.

66032434858 is a deficient number, since it is larger than the sum of its proper divisors (46909920542).

66032434858 is a wasteful number, since it uses less digits than its factorization.

66032434858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149394681.

The product of its (nonzero) digits is 3317760, while the sum is 49.

The spelling of 66032434858 in words is "sixty-six billion, thirty-two million, four hundred thirty-four thousand, eight hundred fifty-eight".