2245431543551 has 4 divisors (see below), whose sum is σ = 2566207478352. Its totient is φ = 1924655608752.

The previous prime is 2245431543527. The next prime is 2245431543557. The reversal of 2245431543551 is 1553451345422.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2245431543551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2245431543557) 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, 160387967390 + ... + 160387967403.

It is an arithmetic number, because the mean of its divisors is an integer number (641551869588).

Almost surely, 2^{2245431543551} is an apocalyptic number.

2245431543551 is a deficient number, since it is larger than the sum of its proper divisors (320775934801).

2245431543551 is an equidigital number, since it uses as much as digits as its factorization.

2245431543551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320775934800.

The product of its digits is 1440000, while the sum is 44.

Adding to 2245431543551 its reverse (1553451345422), we get a palindrome (3798882888973).

The spelling of 2245431543551 in words is "two trillion, two hundred forty-five billion, four hundred thirty-one million, five hundred forty-three thousand, five hundred fifty-one".