140538525696 has 144 divisors (see below), whose sum is σ = 407701312200. Its totient is φ = 46638415872.

The previous prime is 140538525689. The next prime is 140538525697. The reversal of 140538525696 is 696525835041.

140538525696 is a `hidden beast` number, since 1 + 4 + 0 + 5 + 385 + 256 + 9 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140538525697) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4167270 + ... + 4200858.

Almost surely, 2^140538525696 is an apocalyptic number.

140538525696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140538525696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203850656100).

140538525696 is an abundant number, since it is smaller than the sum of its proper divisors (267162786504).

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

140538525696 is a wasteful number, since it uses less digits than its factorization.

140538525696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33844 (or 33821 counting only the distinct ones).

The product of its (nonzero) digits is 7776000, while the sum is 54.

The spelling of 140538525696 in words is "one hundred forty billion, five hundred thirty-eight million, five hundred twenty-five thousand, six hundred ninety-six".