13700140668 has 36 divisors (see below), whose sum is σ = 34634461680. Its totient is φ = 4566245376.

The previous prime is 13700140661. The next prime is 13700140687. The reversal of 13700140668 is 86604100731.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13700140661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 690673 + ... + 710231.

It is an arithmetic number, because the mean of its divisors is an integer number (962068380).

Almost surely, 2^13700140668 is an apocalyptic number.

13700140668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13700140668 is an abundant number, since it is smaller than the sum of its proper divisors (20934321012).

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

13700140668 is a wasteful number, since it uses less digits than its factorization.

13700140668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39026 (or 39021 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 13700140668 in words is "thirteen billion, seven hundred million, one hundred forty thousand, six hundred sixty-eight".