140161354542 has 72 divisors (see below), whose sum is σ = 333897854472. Its totient is φ = 42460719840.

The previous prime is 140161354499. The next prime is 140161354547. The reversal of 140161354542 is 245453161041.

140161354542 is a `hidden beast` number, since 1 + 4 + 0 + 1 + 61 + 3 + 54 + 542 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 140161354497 and 140161354506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140161354547) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9778593 + ... + 9792915.

It is an arithmetic number, because the mean of its divisors is an integer number (4637470201).

Almost surely, 2^140161354542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140161354542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166948927236).

140161354542 is an abundant number, since it is smaller than the sum of its proper divisors (193736499930).

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

140161354542 is a wasteful number, since it uses less digits than its factorization.

140161354542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18846 (or 18832 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 140161354542 in words is "one hundred forty billion, one hundred sixty-one million, three hundred fifty-four thousand, five hundred forty-two".