221534456134675 has 12 divisors (see below), whose sum is σ = 275640277580640. Its totient is φ = 176622692666720.

The previous prime is 221534456134657. The next prime is 221534456134697. The reversal of 221534456134675 is 576431654435122.

It is not a de Polignac number, because 221534456134675 - 2⁹ = 221534456134163 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15121798555 + ... + 15121813204.

It is an arithmetic number, because the mean of its divisors is an integer number (22970023131720).

Almost surely, 2^{221534456134675} is an apocalyptic number.

221534456134675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

221534456134675 is a deficient number, since it is larger than the sum of its proper divisors (54105821445965).

221534456134675 is a wasteful number, since it uses less digits than its factorization.

221534456134675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30243612062 (or 30243612057 counting only the distinct ones).

The product of its digits is 72576000, while the sum is 58.

The spelling of 221534456134675 in words is "two hundred twenty-one trillion, five hundred thirty-four billion, four hundred fifty-six million, one hundred thirty-four thousand, six hundred seventy-five".