210691030966 has 16 divisors (see below), whose sum is σ = 340474299984. Its totient is φ = 97205657184.

The previous prime is 210691030909. The next prime is 210691030967. The reversal of 210691030966 is 669030196012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210691030967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1443940 + ... + 1583143.

It is an arithmetic number, because the mean of its divisors is an integer number (21279643749).

Almost surely, 2^210691030966 is an apocalyptic number.

210691030966 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

210691030966 is a deficient number, since it is larger than the sum of its proper divisors (129783269018).

210691030966 is a wasteful number, since it uses less digits than its factorization.

210691030966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3029775.

The product of its (nonzero) digits is 104976, while the sum is 43.

The spelling of 210691030966 in words is "two hundred ten billion, six hundred ninety-one million, thirty thousand, nine hundred sixty-six".