216953657104 has 40 divisors (see below), whose sum is σ = 424377480960. Its totient is φ = 107437373568.

The previous prime is 216953657099. The next prime is 216953657189. The reversal of 216953657104 is 401756359612.

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, 8586762 + ... + 8611990.

It is an arithmetic number, because the mean of its divisors is an integer number (10609437024).

Almost surely, 2^216953657104 is an apocalyptic number.

It is an amenable number.

216953657104 is a deficient number, since it is larger than the sum of its proper divisors (207423823856).

216953657104 is a wasteful number, since it uses less digits than its factorization.

216953657104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30367 (or 30361 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 49.

The spelling of 216953657104 in words is "two hundred sixteen billion, nine hundred fifty-three million, six hundred fifty-seven thousand, one hundred four".