66831933214998 has 48 divisors (see below), whose sum is σ = 165872560928256. Its totient is φ = 19050534477360.

The previous prime is 66831933214979. The next prime is 66831933215077. The reversal of 66831933214998 is 89941233913866.

66831933214998 is a `hidden beast` number, since 6 + 6 + 8 + 319 + 3 + 3 + 214 + 9 + 98 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 615273036 + ... + 615381647.

It is an arithmetic number, because the mean of its divisors is an integer number (3455678352672).

Almost surely, 2^{66831933214998} is an apocalyptic number.

66831933214998 is an abundant number, since it is smaller than the sum of its proper divisors (99040627713258).

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

66831933214998 is a wasteful number, since it uses less digits than its factorization.

66831933214998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230655129 (or 1230655126 counting only the distinct ones).

The product of its digits is 362797056, while the sum is 72.

The spelling of 66831933214998 in words is "sixty-six trillion, eight hundred thirty-one billion, nine hundred thirty-three million, two hundred fourteen thousand, nine hundred ninety-eight".