7245143645551 has 24 divisors (see below), whose sum is σ = 8656610422416. Its totient is φ = 6041722296960.

The previous prime is 7245143645539. The next prime is 7245143645561. The reversal of 7245143645551 is 1555463415427.

It is not a de Polignac number, because 7245143645551 - 2¹⁹ = 7245143121263 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 (7245143645521) 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, 20000995 + ... + 20360011.

It is an arithmetic number, because the mean of its divisors is an integer number (360692100934).

Almost surely, 2^{7245143645551} is an apocalyptic number.

7245143645551 is a deficient number, since it is larger than the sum of its proper divisors (1411466776865).

7245143645551 is a wasteful number, since it uses less digits than its factorization.

7245143645551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370199 (or 370192 counting only the distinct ones).

The product of its digits is 10080000, while the sum is 52.

The spelling of 7245143645551 in words is "seven trillion, two hundred forty-five billion, one hundred forty-three million, six hundred forty-five thousand, five hundred fifty-one".