105620013655 has 24 divisors (see below), whose sum is σ = 138897149328. Its totient is φ = 77056551936.

The previous prime is 105620013637. The next prime is 105620013689. The reversal of 105620013655 is 556310026501.

It is not a de Polignac number, because 105620013655 - 2⁵ = 105620013623 is a prime.

It is a super-2 number, since 2×105620013655² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 105620013655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 682842 + ... + 823111.

It is an arithmetic number, because the mean of its divisors is an integer number (5787381222).

Almost surely, 2^105620013655 is an apocalyptic number.

105620013655 is a deficient number, since it is larger than the sum of its proper divisors (33277135673).

105620013655 is a wasteful number, since it uses less digits than its factorization.

105620013655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1506067 (or 1506054 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The spelling of 105620013655 in words is "one hundred five billion, six hundred twenty million, thirteen thousand, six hundred fifty-five".