140542640204645 has 64 divisors (see below), whose sum is σ = 214945458057216. Its totient is φ = 85948696458240.

The previous prime is 140542640204623. The next prime is 140542640204671. The reversal of 140542640204645 is 546402046245041.

It is not a de Polignac number, because 140542640204645 - 2¹⁴ = 140542640188261 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140542640204645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 46525571 + ... + 49454160.

It is an arithmetic number, because the mean of its divisors is an integer number (3358522782144).

Almost surely, 2^{140542640204645} is an apocalyptic number.

It is an amenable number.

140542640204645 is a deficient number, since it is larger than the sum of its proper divisors (74402817852571).

140542640204645 is a wasteful number, since it uses less digits than its factorization.

140542640204645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95979890.

The product of its (nonzero) digits is 3686400, while the sum is 47.

Adding to 140542640204645 its reverse (546402046245041), we get a palindrome (686944686449686).

The spelling of 140542640204645 in words is "one hundred forty trillion, five hundred forty-two billion, six hundred forty million, two hundred four thousand, six hundred forty-five".