13640440356155 has 8 divisors (see below), whose sum is σ = 16369070200512. Its totient is φ = 10911991102848.

The previous prime is 13640440356019. The next prime is 13640440356161. The reversal of 13640440356155 is 55165304404631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13640440356155 - 2¹⁰ = 13640440355131 is a prime.

It is a super-3 number, since 3×13640440356155³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44981534 + ... + 45283763.

It is an arithmetic number, because the mean of its divisors is an integer number (2046133775064).

Almost surely, 2^{13640440356155} is an apocalyptic number.

13640440356155 is a deficient number, since it is larger than the sum of its proper divisors (2728629844357).

13640440356155 is an equidigital number, since it uses as much as digits as its factorization.

13640440356155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90295525.

The product of its (nonzero) digits is 2592000, while the sum is 47.

The spelling of 13640440356155 in words is "thirteen trillion, six hundred forty billion, four hundred forty million, three hundred fifty-six thousand, one hundred fifty-five".