215716606206155 has 8 divisors (see below), whose sum is σ = 259038328508784. Its totient is φ = 172454350924000.

The previous prime is 215716606206119. The next prime is 215716606206173. The reversal of 215716606206155 is 551602606617512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 215716606206155 - 2¹⁰ = 215716606205131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 215716606206097 and 215716606206106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14866747136 + ... + 14866761645.

It is an arithmetic number, because the mean of its divisors is an integer number (32379791063598).

Almost surely, 2^{215716606206155} is an apocalyptic number.

215716606206155 is a deficient number, since it is larger than the sum of its proper divisors (43321722302629).

215716606206155 is a wasteful number, since it uses less digits than its factorization.

215716606206155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29733510237.

The product of its (nonzero) digits is 4536000, while the sum is 53.

The spelling of 215716606206155 in words is "two hundred fifteen trillion, seven hundred sixteen billion, six hundred six million, two hundred six thousand, one hundred fifty-five".