211650465 has 32 divisors (see below), whose sum is σ = 371589120. Its totient is φ = 102226176.

The previous prime is 211650463. The next prime is 211650473. The reversal of 211650465 is 564056112.

211650465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 211650465 - 2¹ = 211650463 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211650463) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96 + ... + 20574.

It is an arithmetic number, because the mean of its divisors is an integer number (11612160).

Almost surely, 2^211650465 is an apocalyptic number.

It is an amenable number.

211650465 is a deficient number, since it is larger than the sum of its proper divisors (159938655).

211650465 is a wasteful number, since it uses less digits than its factorization.

211650465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20553.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 211650465 is about 14548.2117457782. The cubic root of 211650465 is about 595.9453136993.

The spelling of 211650465 in words is "two hundred eleven million, six hundred fifty thousand, four hundred sixty-five".