140551665664 has 48 divisors (see below), whose sum is σ = 281273625360. Its totient is φ = 70216089600.

The previous prime is 140551665647. The next prime is 140551665673. The reversal of 140551665664 is 466566155041.

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 3 ways as a sum of consecutive naturals, for example, 2431077 + ... + 2488219.

It is an arithmetic number, because the mean of its divisors is an integer number (5859867195).

Almost surely, 2^140551665664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140551665664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140636812680).

140551665664 is an abundant number, since it is smaller than the sum of its proper divisors (140721959696).

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

140551665664 is an equidigital number, since it uses as much as digits as its factorization.

140551665664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58366 (or 58346 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 49.

The spelling of 140551665664 in words is "one hundred forty billion, five hundred fifty-one million, six hundred sixty-five thousand, six hundred sixty-four".