2151605596589 has 4 divisors (see below), whose sum is σ = 2183719113024. Its totient is φ = 2119492080156.

The previous prime is 2151605596531. The next prime is 2151605596627. The reversal of 2151605596589 is 9856955061512.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2151605596589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151605596529) 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, 16056758117 + ... + 16056758250.

It is an arithmetic number, because the mean of its divisors is an integer number (545929778256).

Almost surely, 2^{2151605596589} is an apocalyptic number.

It is an amenable number.

2151605596589 is a deficient number, since it is larger than the sum of its proper divisors (32113516435).

2151605596589 is an equidigital number, since it uses as much as digits as its factorization.

2151605596589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32113516434.

The product of its (nonzero) digits is 29160000, while the sum is 62.

The spelling of 2151605596589 in words is "two trillion, one hundred fifty-one billion, six hundred five million, five hundred ninety-six thousand, five hundred eighty-nine".