102104137666 has 16 divisors (see below), whose sum is σ = 155334837888. Its totient is φ = 50326057600.

The previous prime is 102104137591. The next prime is 102104137687. The reversal of 102104137666 is 666731401201.

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, 1067571 + ... + 1159273.

It is an arithmetic number, because the mean of its divisors is an integer number (9708427368).

Almost surely, 2^102104137666 is an apocalyptic number.

102104137666 is a deficient number, since it is larger than the sum of its proper divisors (53230700222).

102104137666 is an equidigital number, since it uses as much as digits as its factorization.

102104137666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99617.

The product of its (nonzero) digits is 36288, while the sum is 37.

Adding to 102104137666 its reverse (666731401201), we get a palindrome (768835538867).

The spelling of 102104137666 in words is "one hundred two billion, one hundred four million, one hundred thirty-seven thousand, six hundred sixty-six".