115556050605566 has 4 divisors (see below), whose sum is σ = 173334075908352. Its totient is φ = 57778025302782.

The previous prime is 115556050605503. The next prime is 115556050605649. The reversal of 115556050605566 is 665506050655511.

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

It is a super-2 number, since 2×115556050605566² (a number of 29 digits) contains 22 as substring.

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, 28889012651390 + ... + 28889012651393.

It is an arithmetic number, because the mean of its divisors is an integer number (43333518977088).

Almost surely, 2^{115556050605566} is an apocalyptic number.

115556050605566 is a deficient number, since it is larger than the sum of its proper divisors (57778025302786).

115556050605566 is an equidigital number, since it uses as much as digits as its factorization.

115556050605566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57778025302785.

The product of its (nonzero) digits is 20250000, while the sum is 56.

The spelling of 115556050605566 in words is "one hundred fifteen trillion, five hundred fifty-six billion, fifty million, six hundred five thousand, five hundred sixty-six".