102439181966 has 8 divisors (see below), whose sum is σ = 167627752344. Its totient is φ = 46563264520.

The previous prime is 102439181947. The next prime is 102439181987. The reversal of 102439181966 is 669181934201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2328163205 + ... + 2328163248.

It is an arithmetic number, because the mean of its divisors is an integer number (20953469043).

Almost surely, 2^102439181966 is an apocalyptic number.

102439181966 is a deficient number, since it is larger than the sum of its proper divisors (65188570378).

102439181966 is a wasteful number, since it uses less digits than its factorization.

102439181966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4656326466.

The product of its (nonzero) digits is 559872, while the sum is 50.

The spelling of 102439181966 in words is "one hundred two billion, four hundred thirty-nine million, one hundred eighty-one thousand, nine hundred sixty-six".