140664097920 has 128 divisors (see below), whose sum is σ = 448822635840. Its totient is φ = 37472292864.

The previous prime is 140664097907. The next prime is 140664097921. The reversal of 140664097920 is 29790466041.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 140664097920.

It is not an unprimeable number, because it can be changed into a prime (140664097921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1877499 + ... + 1950981.

Almost surely, 2^140664097920 is an apocalyptic number.

140664097920 is a gapful number since it is divisible by the number (10) 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 140664097920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224411317920).

140664097920 is an abundant number, since it is smaller than the sum of its proper divisors (308158537920).

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

140664097920 is an equidigital number, since it uses as much as digits as its factorization.

140664097920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74502 (or 74490 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 48.

The spelling of 140664097920 in words is "one hundred forty billion, six hundred sixty-four million, ninety-seven thousand, nine hundred twenty".