140820371253864 has 48 divisors (see below), whose sum is σ = 381462147830400. Its totient is φ = 46931060077344.

The previous prime is 140820371253851. The next prime is 140820371253889. The reversal of 140820371253864 is 468352173028041.

140820371253864 is a `hidden beast` number, since 1 + 4 + 0 + 8 + 2 + 0 + 37 + 12 + 538 + 64 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 140820371253864.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 188451064 + ... + 189196839.

It is an arithmetic number, because the mean of its divisors is an integer number (7947128079800).

Almost surely, 2^{140820371253864} is an apocalyptic number.

It is an amenable number.

140820371253864 is an abundant number, since it is smaller than the sum of its proper divisors (240641776576536).

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

140820371253864 is a wasteful number, since it uses less digits than its factorization.

140820371253864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377653094 (or 377653087 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 54.

The spelling of 140820371253864 in words is "one hundred forty trillion, eight hundred twenty billion, three hundred seventy-one million, two hundred fifty-three thousand, eight hundred sixty-four".