21367352555210 has 32 divisors (see below), whose sum is σ = 38518147261440. Its totient is φ = 8534297751552.

The previous prime is 21367352555189. The next prime is 21367352555239. The reversal of 21367352555210 is 1255525376312.

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, 43179407 + ... + 43671453.

It is an arithmetic number, because the mean of its divisors is an integer number (1203692101920).

Almost surely, 2^{21367352555210} is an apocalyptic number.

21367352555210 is a deficient number, since it is larger than the sum of its proper divisors (17150794706230).

21367352555210 is a wasteful number, since it uses less digits than its factorization.

21367352555210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498470.

The product of its (nonzero) digits is 1890000, while the sum is 47.

The spelling of 21367352555210 in words is "twenty-one trillion, three hundred sixty-seven billion, three hundred fifty-two million, five hundred fifty-five thousand, two hundred ten".