140044261544 has 32 divisors (see below), whose sum is σ = 295694634240. Its totient is φ = 61603046400.

The previous prime is 140044261541. The next prime is 140044261549. The reversal of 140044261544 is 445162440041.

It is a super-2 number, since 2×140044261544² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140044261541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25665209 + ... + 25670664.

It is an arithmetic number, because the mean of its divisors is an integer number (9240457320).

Almost surely, 2^140044261544 is an apocalyptic number.

It is an amenable number.

140044261544 is an abundant number, since it is smaller than the sum of its proper divisors (155650372696).

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

140044261544 is a wasteful number, since it uses less digits than its factorization.

140044261544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51335921 (or 51335917 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 35.

The spelling of 140044261544 in words is "one hundred forty billion, forty-four million, two hundred sixty-one thousand, five hundred forty-four".