2156101226543 has 8 divisors (see below), whose sum is σ = 2352127855440. Its totient is φ = 1960077502080.

The previous prime is 2156101226533. The next prime is 2156101226557. The reversal of 2156101226543 is 3456221016512.

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 2156101226543 - 2⁶ = 2156101226479 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2156101226497 and 2156101226506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2156101226533) 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, 1005671 + ... + 2307287.

It is an arithmetic number, because the mean of its divisors is an integer number (294015981930).

Almost surely, 2^{2156101226543} is an apocalyptic number.

2156101226543 is a deficient number, since it is larger than the sum of its proper divisors (196026628897).

2156101226543 is a wasteful number, since it uses less digits than its factorization.

2156101226543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1452217.

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 2156101226543 in words is "two trillion, one hundred fifty-six billion, one hundred one million, two hundred twenty-six thousand, five hundred forty-three".