140636067840 has 144 divisors (see below), whose sum is σ = 487419660000. Its totient is φ = 37502926848.

The previous prime is 140636067811. The next prime is 140636067857. The reversal of 140636067840 is 48760636041.

It is a happy number.

140636067840 is a `hidden beast` number, since 1 + 4 + 0 + 636 + 0 + 6 + 7 + 8 + 4 + 0 = 666.

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

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 670840 + ... + 855159.

It is an arithmetic number, because the mean of its divisors is an integer number (3384858750).

Almost surely, 2^140636067840 is an apocalyptic number.

140636067840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140636067840 is an abundant number, since it is smaller than the sum of its proper divisors (346783592160).

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

140636067840 is a wasteful number, since it uses less digits than its factorization.

140636067840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1526032 (or 1526009 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 140636067840 in words is "one hundred forty billion, six hundred thirty-six million, sixty-seven thousand, eight hundred forty".