15655656505161 has 16 divisors (see below), whose sum is σ = 20907927650304. Its totient is φ = 10420247097744.

The previous prime is 15655656505123. The next prime is 15655656505169. The reversal of 15655656505161 is 16150565655651.

It is not a de Polignac number, because 15655656505161 - 2¹³ = 15655656496969 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (15655656505169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28350456 + ... + 28897398.

It is an arithmetic number, because the mean of its divisors is an integer number (1306745478144).

Almost surely, 2^{15655656505161} is an apocalyptic number.

It is an amenable number.

15655656505161 is a deficient number, since it is larger than the sum of its proper divisors (5252271145143).

15655656505161 is a wasteful number, since it uses less digits than its factorization.

15655656505161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562340.

The product of its (nonzero) digits is 20250000, while the sum is 57.

The spelling of 15655656505161 in words is "fifteen trillion, six hundred fifty-five billion, six hundred fifty-six million, five hundred five thousand, one hundred sixty-one".