216414346635 has 24 divisors (see below), whose sum is σ = 376756289520. Its totient is φ = 114916957632.

The previous prime is 216414346601. The next prime is 216414346657. The reversal of 216414346635 is 536643414612.

216414346635 is a `hidden beast` number, since 2 + 1 + 6 + 4 + 1 + 4 + 3 + 4 + 6 + 635 = 666.

It is not a de Polignac number, because 216414346635 - 2⁷ = 216414346507 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10490149 + ... + 10510758.

It is an arithmetic number, because the mean of its divisors is an integer number (15698178730).

Almost surely, 2^216414346635 is an apocalyptic number.

216414346635 is a deficient number, since it is larger than the sum of its proper divisors (160341942885).

216414346635 is a wasteful number, since it uses less digits than its factorization.

216414346635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21001147 (or 21001144 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 45.

The spelling of 216414346635 in words is "two hundred sixteen billion, four hundred fourteen million, three hundred forty-six thousand, six hundred thirty-five".