105315520155545 has 32 divisors (see below), whose sum is σ = 156049750368000. Its totient is φ = 67968335678208.

The previous prime is 105315520155539. The next prime is 105315520155563. The reversal of 105315520155545 is 545551025513501.

It is not a de Polignac number, because 105315520155545 - 2²⁶ = 105315453046681 is a prime.

It is a super-2 number, since 2×105315520155545² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105315520155545.

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, 1806102215 + ... + 1806160524.

It is an arithmetic number, because the mean of its divisors is an integer number (4876554699000).

Almost surely, 2^{105315520155545} is an apocalyptic number.

It is an amenable number.

105315520155545 is a deficient number, since it is larger than the sum of its proper divisors (50734230212455).

105315520155545 is an equidigital number, since it uses as much as digits as its factorization.

105315520155545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3612262782 (or 3612262768 counting only the distinct ones).

The product of its (nonzero) digits is 1875000, while the sum is 47.

The spelling of 105315520155545 in words is "one hundred five trillion, three hundred fifteen billion, five hundred twenty million, one hundred fifty-five thousand, five hundred forty-five".