143261645551 has 2 divisors, whose sum is σ = 143261645552. Its totient is φ = 143261645550.

The previous prime is 143261645519. The next prime is 143261645561. The reversal of 143261645551 is 155546162341.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 143261645551 - 2⁵ = 143261645519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 143261645498 and 143261645507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143261645561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71630822775 + 71630822776.

It is an arithmetic number, because the mean of its divisors is an integer number (71630822776).

Almost surely, 2^143261645551 is an apocalyptic number.

143261645551 is a deficient number, since it is larger than the sum of its proper divisors (1).

143261645551 is an equidigital number, since it uses as much as digits as its factorization.

143261645551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432000, while the sum is 43.

The spelling of 143261645551 in words is "one hundred forty-three billion, two hundred sixty-one million, six hundred forty-five thousand, five hundred fifty-one".