240027157551 has 4 divisors (see below), whose sum is σ = 320036210072. Its totient is φ = 160018105032.

The previous prime is 240027157547. The next prime is 240027157589. The reversal of 240027157551 is 155751720042.

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

It is not a de Polignac number, because 240027157551 - 2² = 240027157547 is a prime.

It is a super-2 number, since 2×240027157551² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240027157651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40004526256 + ... + 40004526261.

It is an arithmetic number, because the mean of its divisors is an integer number (80009052518).

Almost surely, 2^240027157551 is an apocalyptic number.

240027157551 is a deficient number, since it is larger than the sum of its proper divisors (80009052521).

240027157551 is an equidigital number, since it uses as much as digits as its factorization.

240027157551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80009052520.

The product of its (nonzero) digits is 98000, while the sum is 39.

Adding to 240027157551 its reverse (155751720042), we get a palindrome (395778877593).

The spelling of 240027157551 in words is "two hundred forty billion, twenty-seven million, one hundred fifty-seven thousand, five hundred fifty-one".