21316414613522 has 16 divisors (see below), whose sum is σ = 36564996075840. Its totient is φ = 9129963506928.

The previous prime is 21316414613497. The next prime is 21316414613539. The reversal of 21316414613522 is 22531641461312.

It is a self number, because there is not a number n which added to its sum of digits gives 21316414613522.

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, 470206193 + ... + 470251524.

It is an arithmetic number, because the mean of its divisors is an integer number (2285312254740).

Almost surely, 2^{21316414613522} is an apocalyptic number.

21316414613522 is a deficient number, since it is larger than the sum of its proper divisors (15248581462318).

21316414613522 is a wasteful number, since it uses less digits than its factorization.

21316414613522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940459345.

The product of its digits is 207360, while the sum is 41.

The spelling of 21316414613522 in words is "twenty-one trillion, three hundred sixteen billion, four hundred fourteen million, six hundred thirteen thousand, five hundred twenty-two".