103973775566 has 4 divisors (see below), whose sum is σ = 155960663352. Its totient is φ = 51986887782.

The previous prime is 103973775527. The next prime is 103973775673. The reversal of 103973775566 is 665577379301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 665577379301 = 109 ⋅6106214489.

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, 25993443890 + ... + 25993443893.

It is an arithmetic number, because the mean of its divisors is an integer number (38990165838).

Almost surely, 2^103973775566 is an apocalyptic number.

103973775566 is a deficient number, since it is larger than the sum of its proper divisors (51986887786).

103973775566 is an equidigital number, since it uses as much as digits as its factorization.

103973775566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51986887785.

The product of its (nonzero) digits is 25004700, while the sum is 59.

The spelling of 103973775566 in words is "one hundred three billion, nine hundred seventy-three million, seven hundred seventy-five thousand, five hundred sixty-six".