166430022165136 has 20 divisors (see below), whose sum is σ = 330323001310764. Its totient is φ = 81185376665600.

The previous prime is 166430022165131. The next prime is 166430022165223. The reversal of 166430022165136 is 631561220034661.

It can be written as a sum of positive squares in 2 ways, for example, as 2197082849536 + 164232939315600 = 1482256^2 + 12815340^2 .

It is not an unprimeable number, because it can be changed into a prime (166430022165131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126852150385 + ... + 126852151696.

Almost surely, 2^{166430022165136} is an apocalyptic number.

166430022165136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

166430022165136 is a deficient number, since it is larger than the sum of its proper divisors (163892979145628).

166430022165136 is a wasteful number, since it uses less digits than its factorization.

166430022165136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253704302130 (or 253704302124 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 46.

Adding to 166430022165136 its reverse (631561220034661), we get a palindrome (797991242199797).

The spelling of 166430022165136 in words is "one hundred sixty-six trillion, four hundred thirty billion, twenty-two million, one hundred sixty-five thousand, one hundred thirty-six".