13011715540 has 24 divisors (see below), whose sum is σ = 27670487040. Its totient is φ = 5138803488.

The previous prime is 13011715537. The next prime is 13011715543. The reversal of 13011715540 is 4551711031.

It is an interprime number because it is at equal distance from previous prime (13011715537) and next prime (13011715543).

It is a junction number, because it is equal to n+sod(n) for n = 13011715499 and 13011715508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13011715543) 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, 4116052 + ... + 4119211.

It is an arithmetic number, because the mean of its divisors is an integer number (1152936960).

Almost surely, 2^13011715540 is an apocalyptic number.

13011715540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13011715540 is an abundant number, since it is smaller than the sum of its proper divisors (14658771500).

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

13011715540 is a wasteful number, since it uses less digits than its factorization.

13011715540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8235351 (or 8235349 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 28.

The spelling of 13011715540 in words is "thirteen billion, eleven million, seven hundred fifteen thousand, five hundred forty".