2166142345157 has 8 divisors (see below), whose sum is σ = 2491359350016. Its totient is φ = 1844867364912.

The previous prime is 2166142345153. The next prime is 2166142345243. The reversal of 2166142345157 is 7515432416612.

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

It is a cyclic number.

It is not a de Polignac number, because 2166142345157 - 2² = 2166142345153 is a prime.

It is a super-4 number, since 4×2166142345157⁴ (a number of 50 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2166142345153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 985504973 + ... + 985507170.

It is an arithmetic number, because the mean of its divisors is an integer number (311419918752).

Almost surely, 2^{2166142345157} is an apocalyptic number.

It is an amenable number.

2166142345157 is a deficient number, since it is larger than the sum of its proper divisors (325217004859).

2166142345157 is a wasteful number, since it uses less digits than its factorization.

2166142345157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1971012307.

The product of its digits is 1209600, while the sum is 47.

The spelling of 2166142345157 in words is "two trillion, one hundred sixty-six billion, one hundred forty-two million, three hundred forty-five thousand, one hundred fifty-seven".