140307718321554 has 128 divisors (see below), whose sum is σ = 352355949711360. Its totient is φ = 36316913428224.

The previous prime is 140307718321543. The next prime is 140307718321559. The reversal of 140307718321554 is 455123817703041.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 140307718321497 and 140307718321506.

It is not an unprimeable number, because it can be changed into a prime (140307718321559) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 66448152 + ... + 68527164.

It is an arithmetic number, because the mean of its divisors is an integer number (2752780857120).

Almost surely, 2^{140307718321554} is an apocalyptic number.

140307718321554 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 140307718321554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176177974855680).

140307718321554 is an abundant number, since it is smaller than the sum of its proper divisors (212048231389806).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140307718321554 is a wasteful number, since it uses less digits than its factorization.

140307718321554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2082744.

The product of its (nonzero) digits is 2822400, while the sum is 51.

The spelling of 140307718321554 in words is "one hundred forty trillion, three hundred seven billion, seven hundred eighteen million, three hundred twenty-one thousand, five hundred fifty-four".