21710660498 has 16 divisors (see below), whose sum is σ = 34365500640. Its totient is φ = 10258344000.

The previous prime is 21710660443. The next prime is 21710660527. The reversal of 21710660498 is 89406601712.

It is a Curzon number.

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, 697148 + ... + 727623.

It is an arithmetic number, because the mean of its divisors is an integer number (2147843790).

Almost surely, 2^21710660498 is an apocalyptic number.

21710660498 is a deficient number, since it is larger than the sum of its proper divisors (12654840142).

21710660498 is a wasteful number, since it uses less digits than its factorization.

21710660498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1425193.

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 21710660498 in words is "twenty-one billion, seven hundred ten million, six hundred sixty thousand, four hundred ninety-eight".