156106161215217 has 12 divisors (see below), whose sum is σ = 238750599505860. Its totient is φ = 97948963899648.

The previous prime is 156106161215141. The next prime is 156106161215239. The reversal of 156106161215217 is 712512161601651.

156106161215217 is a `hidden beast` number, since 1 + 5 + 6 + 1 + 0 + 6 + 1 + 612 + 1 + 5 + 21 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 91158938102961 + 64947223112256 = 9547719^2 + 8058984^2 .

It is not a de Polignac number, because 156106161215217 - 2¹⁵ = 156106161182449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (156106161215267) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 510150853492 + ... + 510150853797.

It is an arithmetic number, because the mean of its divisors is an integer number (19895883292155).

Almost surely, 2^{156106161215217} is an apocalyptic number.

156106161215217 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

156106161215217 is a deficient number, since it is larger than the sum of its proper divisors (82644438290643).

156106161215217 is a wasteful number, since it uses less digits than its factorization.

156106161215217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020301707312 (or 1020301707309 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 45.

The spelling of 156106161215217 in words is "one hundred fifty-six trillion, one hundred six billion, one hundred sixty-one million, two hundred fifteen thousand, two hundred seventeen".