221534456465374 has 8 divisors (see below), whose sum is σ = 357863352751800. Its totient is φ = 102246672214776.

The previous prime is 221534456465339. The next prime is 221534456465401. The reversal of 221534456465374 is 473564654435122.

221534456465374 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4260278008924 + ... + 4260278008975.

It is an arithmetic number, because the mean of its divisors is an integer number (44732919093975).

Almost surely, 2^{221534456465374} is an apocalyptic number.

221534456465374 is a deficient number, since it is larger than the sum of its proper divisors (136328896286426).

221534456465374 is a wasteful number, since it uses less digits than its factorization.

221534456465374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8520556017914.

The product of its digits is 290304000, while the sum is 61.

The spelling of 221534456465374 in words is "two hundred twenty-one trillion, five hundred thirty-four billion, four hundred fifty-six million, four hundred sixty-five thousand, three hundred seventy-four".