166021214133026 has 16 divisors (see below), whose sum is σ = 284900903605440. Its totient is φ = 71078671926960.

The previous prime is 166021214133017. The next prime is 166021214133029. The reversal of 166021214133026 is 620331412120661.

It is a super-3 number, since 3×166021214133026³ (a number of 44 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (166021214133029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6106401521 + ... + 6106428708.

It is an arithmetic number, because the mean of its divisors is an integer number (17806306475340).

Almost surely, 2^{166021214133026} is an apocalyptic number.

166021214133026 is a deficient number, since it is larger than the sum of its proper divisors (118879689472414).

166021214133026 is a wasteful number, since it uses less digits than its factorization.

166021214133026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12212831209.

The product of its (nonzero) digits is 62208, while the sum is 38.

Adding to 166021214133026 its reverse (620331412120661), we get a palindrome (786352626253687).

The spelling of 166021214133026 in words is "one hundred sixty-six trillion, twenty-one billion, two hundred fourteen million, one hundred thirty-three thousand, twenty-six".