13140665454 has 128 divisors (see below), whose sum is σ = 31793356800. Its totient is φ = 3615494400.

The previous prime is 13140665441. The next prime is 13140665467. The reversal of 13140665454 is 45456604131.

It is an interprime number because it is at equal distance from previous prime (13140665441) and next prime (13140665467).

It is a super-2 number, since 2×13140665454² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17926872 + ... + 17927604.

It is an arithmetic number, because the mean of its divisors is an integer number (248385600).

Almost surely, 2^13140665454 is an apocalyptic number.

13140665454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13140665454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15896678400).

13140665454 is an abundant number, since it is smaller than the sum of its proper divisors (18652691346).

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

13140665454 is a wasteful number, since it uses less digits than its factorization.

13140665454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071 (or 1057 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 13140665454 in words is "thirteen billion, one hundred forty million, six hundred sixty-five thousand, four hundred fifty-four".