140400064551 has 8 divisors (see below), whose sum is σ = 188150341104. Its totient is φ = 93124915520.

The previous prime is 140400064537. The next prime is 140400064561. The reversal of 140400064551 is 155460004041.

140400064551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140400064551 - 2¹³ = 140400056359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140400064561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118781190 + ... + 118782371.

It is an arithmetic number, because the mean of its divisors is an integer number (23518792638).

Almost surely, 2^140400064551 is an apocalyptic number.

140400064551 is a deficient number, since it is larger than the sum of its proper divisors (47750276553).

140400064551 is a wasteful number, since it uses less digits than its factorization.

140400064551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237563761.

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 140400064551 its reverse (155460004041), we get a palindrome (295860068592).

The spelling of 140400064551 in words is "one hundred forty billion, four hundred million, sixty-four thousand, five hundred fifty-one".