221745017456070 has 64 divisors (see below), whose sum is σ = 551623299296256. Its totient is φ = 57010087664640.

The previous prime is 221745017455993. The next prime is 221745017456101. The reversal of 221745017456070 is 70654710547122.

221745017456070 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1173532171 + ... + 1173721110.

It is an arithmetic number, because the mean of its divisors is an integer number (8619114051504).

Almost surely, 2^{221745017456070} is an apocalyptic number.

221745017456070 is an abundant number, since it is smaller than the sum of its proper divisors (329878281840186).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221745017456070 is a wasteful number, since it uses less digits than its factorization.

221745017456070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2347253405.

The product of its (nonzero) digits is 3292800, while the sum is 51.

The spelling of 221745017456070 in words is "two hundred twenty-one trillion, seven hundred forty-five billion, seventeen million, four hundred fifty-six thousand, seventy".