2143167355551 has 8 divisors (see below), whose sum is σ = 2860800015024. Its totient is φ = 1427156466560.

The previous prime is 2143167355543. The next prime is 2143167355573. The reversal of 2143167355551 is 1555537613412.

It is a happy number.

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 2143167355551 - 2³ = 2143167355543 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2143167355551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143167355501) 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, 405439536 + ... + 405444821.

It is an arithmetic number, because the mean of its divisors is an integer number (357600001878).

Almost surely, 2^{2143167355551} is an apocalyptic number.

2143167355551 is a deficient number, since it is larger than the sum of its proper divisors (717632659473).

2143167355551 is an equidigital number, since it uses as much as digits as its factorization.

2143167355551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810885241.

The product of its digits is 1890000, while the sum is 48.

The spelling of 2143167355551 in words is "two trillion, one hundred forty-three billion, one hundred sixty-seven million, three hundred fifty-five thousand, five hundred fifty-one".