13620555502631 has 32 divisors (see below), whose sum is σ = 17019593717760. Its totient is φ = 10589620204800.

The previous prime is 13620555502607. The next prime is 13620555502753.

13620555502631 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 13620555502631 - 2¹⁴ = 13620555486247 is a prime.

It is a super-2 number, since 2×13620555502631² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13620555502601) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61996466 + ... + 62215776.

It is an arithmetic number, because the mean of its divisors is an integer number (531862303680).

Almost surely, 2^{13620555502631} is an apocalyptic number.

13620555502631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13620555502631 is a deficient number, since it is larger than the sum of its proper divisors (3399038215129).

13620555502631 is a wasteful number, since it uses less digits than its factorization.

13620555502631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221135.

The product of its (nonzero) digits is 810000, while the sum is 44.

It can be divided in two parts, 1362055 and 5502631, that added together give a palindrome (6864686).

The spelling of 13620555502631 in words is "thirteen trillion, six hundred twenty billion, five hundred fifty-five million, five hundred two thousand, six hundred thirty-one".