21071645114 has 32 divisors (see below), whose sum is σ = 35451271296. Its totient is φ = 9329221440.

The previous prime is 21071645087. The next prime is 21071645123. The reversal of 21071645114 is 41154617012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85952 + ... + 222555.

It is an arithmetic number, because the mean of its divisors is an integer number (1107852228).

Almost surely, 2^21071645114 is an apocalyptic number.

21071645114 is a deficient number, since it is larger than the sum of its proper divisors (14379626182).

21071645114 is a wasteful number, since it uses less digits than its factorization.

21071645114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308630.

The product of its (nonzero) digits is 6720, while the sum is 32.

The spelling of 21071645114 in words is "twenty-one billion, seventy-one million, six hundred forty-five thousand, one hundred fourteen".