2116661560234 has 8 divisors (see below), whose sum is σ = 3419222520420. Its totient is φ = 976920720096.

The previous prime is 2116661560217. The next prime is 2116661560241. The reversal of 2116661560234 is 4320651666112.

It can be written as a sum of positive squares in 2 ways, for example, as 1799125929225 + 317535631009 = 1341315^2 + 563503^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40705029979 + ... + 40705030030.

Almost surely, 2^{2116661560234} is an apocalyptic number.

2116661560234 is a deficient number, since it is larger than the sum of its proper divisors (1302560960186).

2116661560234 is a wasteful number, since it uses less digits than its factorization.

2116661560234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81410060024.

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 2116661560234 in words is "two trillion, one hundred sixteen billion, six hundred sixty-one million, five hundred sixty thousand, two hundred thirty-four".