221641164670334 has 16 divisors (see below), whose sum is σ = 336078475326000. Its totient is φ = 109617130593600.

The previous prime is 221641164670309. The next prime is 221641164670361. The reversal of 221641164670334 is 433076461146122.

It is a super-2 number, since 2×221641164670334² (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 in 7 ways as a sum of consecutive naturals, for example, 530882084 + ... + 531299415.

It is an arithmetic number, because the mean of its divisors is an integer number (21004904707875).

Almost surely, 2^{221641164670334} is an apocalyptic number.

221641164670334 is a deficient number, since it is larger than the sum of its proper divisors (114437310655666).

221641164670334 is a wasteful number, since it uses less digits than its factorization.

221641164670334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062182635.

The product of its (nonzero) digits is 3483648, while the sum is 50.

The spelling of 221641164670334 in words is "two hundred twenty-one trillion, six hundred forty-one billion, one hundred sixty-four million, six hundred seventy thousand, three hundred thirty-four".