240673103551 has 4 divisors (see below), whose sum is σ = 240675622600. Its totient is φ = 240670584504.

The previous prime is 240673103533. The next prime is 240673103591. The reversal of 240673103551 is 155301376042.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 155301376042 = 2 ⋅77650688021.

It is a cyclic number.

It is not a de Polignac number, because 240673103551 - 2⁷ = 240673103423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 240673103551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240673103521) 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, 1110321 + ... + 1309258.

It is an arithmetic number, because the mean of its divisors is an integer number (60168905650).

Almost surely, 2^240673103551 is an apocalyptic number.

240673103551 is a deficient number, since it is larger than the sum of its proper divisors (2519049).

240673103551 is an equidigital number, since it uses as much as digits as its factorization.

240673103551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2519048.

The product of its (nonzero) digits is 75600, while the sum is 37.

Adding to 240673103551 its reverse (155301376042), we get a palindrome (395974479593).

The spelling of 240673103551 in words is "two hundred forty billion, six hundred seventy-three million, one hundred three thousand, five hundred fifty-one".