13451745516 has 96 divisors (see below), whose sum is σ = 36456376320. Its totient is φ = 3815193600.

The previous prime is 13451745467. The next prime is 13451745529. The reversal of 13451745516 is 61554715431.

It is a super-2 number, since 2×13451745516² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

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, 389605 + ... + 422723.

It is an arithmetic number, because the mean of its divisors is an integer number (379753920).

Almost surely, 2^13451745516 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13451745516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18228188160).

13451745516 is an abundant number, since it is smaller than the sum of its proper divisors (23004630804).

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

13451745516 is a wasteful number, since it uses less digits than its factorization.

13451745516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33335 (or 33333 counting only the distinct ones).

The product of its digits is 252000, while the sum is 42.

The spelling of 13451745516 in words is "thirteen billion, four hundred fifty-one million, seven hundred forty-five thousand, five hundred sixteen".