102975968155 has 4 divisors (see below), whose sum is σ = 123571161792. Its totient is φ = 82380774520.

The previous prime is 102975968077. The next prime is 102975968167. The reversal of 102975968155 is 551869579201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 102975968155 - 2³¹ = 100828484507 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102975968155.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10297596811 + ... + 10297596820.

It is an arithmetic number, because the mean of its divisors is an integer number (30892790448).

Almost surely, 2^102975968155 is an apocalyptic number.

102975968155 is a deficient number, since it is larger than the sum of its proper divisors (20595193637).

102975968155 is an equidigital number, since it uses as much as digits as its factorization.

102975968155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20595193636.

The product of its (nonzero) digits is 6804000, while the sum is 58.

The spelling of 102975968155 in words is "one hundred two billion, nine hundred seventy-five million, nine hundred sixty-eight thousand, one hundred fifty-five".