13545557624040 has 128 divisors (see below), whose sum is σ = 43767255692160. Its totient is φ = 3333934162944.

The previous prime is 13545557624029. The next prime is 13545557624077. The reversal of 13545557624040 is 4042675554531.

It is a Cunningham number, because it is equal to 3680429²-1.

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, 14261667 + ... + 15181773.

It is an arithmetic number, because the mean of its divisors is an integer number (341931685095).

Almost surely, 2^{13545557624040} is an apocalyptic number.

13545557624040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13545557624040 is an abundant number, since it is smaller than the sum of its proper divisors (30221698068120).

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

13545557624040 is a wasteful number, since it uses less digits than its factorization.

13545557624040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929571 (or 929567 counting only the distinct ones).

The product of its (nonzero) digits is 10080000, while the sum is 51.

The spelling of 13545557624040 in words is "thirteen trillion, five hundred forty-five billion, five hundred fifty-seven million, six hundred twenty-four thousand, forty".