155556656010105 has 64 divisors (see below), whose sum is σ = 287880489953280. Its totient is φ = 70253147344896.

The previous prime is 155556656010101. The next prime is 155556656010169. The reversal of 155556656010105 is 501010656655551.

It is not a de Polignac number, because 155556656010105 - 2² = 155556656010101 is a prime.

It is a super-2 number, since 2×155556656010105² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (155556656010101) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 403076326 + ... + 403462064.

It is an arithmetic number, because the mean of its divisors is an integer number (4498132655520).

Almost surely, 2^{155556656010105} is an apocalyptic number.

155556656010105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

155556656010105 is a deficient number, since it is larger than the sum of its proper divisors (132323833943175).

155556656010105 is a wasteful number, since it uses less digits than its factorization.

155556656010105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432110.

The product of its (nonzero) digits is 3375000, while the sum is 51.

The spelling of 155556656010105 in words is "one hundred fifty-five trillion, five hundred fifty-six billion, six hundred fifty-six million, ten thousand, one hundred five".