140700261640 has 128 divisors (see below), whose sum is σ = 342263750400. Its totient is φ = 51895782400.

The previous prime is 140700261631. The next prime is 140700261671. The reversal of 140700261640 is 46162007041.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18698919 + ... + 18706441.

It is an arithmetic number, because the mean of its divisors is an integer number (2673935550).

Almost surely, 2^140700261640 is an apocalyptic number.

140700261640 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 140700261640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171131875200).

140700261640 is an abundant number, since it is smaller than the sum of its proper divisors (201563488760).

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

140700261640 is a wasteful number, since it uses less digits than its factorization.

140700261640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8287 (or 8283 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

Adding to 140700261640 its reverse (46162007041), we get a palindrome (186862268681).

The spelling of 140700261640 in words is "one hundred forty billion, seven hundred million, two hundred sixty-one thousand, six hundred forty".