2133556705 has 16 divisors (see below), whose sum is σ = 3053240064. Its totient is φ = 1399400640.

The previous prime is 2133556639. The next prime is 2133556727. The reversal of 2133556705 is 5076553312.

It is not a de Polignac number, because 2133556705 - 2⁷ = 2133556577 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1324386 + ... + 1325995.

It is an arithmetic number, because the mean of its divisors is an integer number (190827504).

Almost surely, 2^2133556705 is an apocalyptic number.

It is an amenable number.

2133556705 is a deficient number, since it is larger than the sum of its proper divisors (919683359).

2133556705 is a wasteful number, since it uses less digits than its factorization.

2133556705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2650416.

The product of its (nonzero) digits is 94500, while the sum is 37.

The square root of 2133556705 is about 46190.4395410998. The cubic root of 2133556705 is about 1287.3641076922.

The spelling of 2133556705 in words is "two billion, one hundred thirty-three million, five hundred fifty-six thousand, seven hundred five".