2145364126641 has 24 divisors (see below), whose sum is σ = 3103072634376. Its totient is φ = 1428299228160.

The previous prime is 2145364126637. The next prime is 2145364126643. The reversal of 2145364126641 is 1466214635412.

2145364126641 is a `hidden beast` number, since 2 + 1 + 4 + 536 + 4 + 12 + 66 + 41 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1281245150241 + 864118976400 = 1131921^2 + 929580^2 .

It is not a de Polignac number, because 2145364126641 - 2² = 2145364126637 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2145364126643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24435181 + ... + 24522821.

It is an arithmetic number, because the mean of its divisors is an integer number (129294693099).

Almost surely, 2^{2145364126641} is an apocalyptic number.

It is an amenable number.

2145364126641 is a deficient number, since it is larger than the sum of its proper divisors (957708507735).

2145364126641 is a wasteful number, since it uses less digits than its factorization.

2145364126641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91313 (or 91310 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The spelling of 2145364126641 in words is "two trillion, one hundred forty-five billion, three hundred sixty-four million, one hundred twenty-six thousand, six hundred forty-one".