216461357043 has 4 divisors (see below), whose sum is σ = 288615142728. Its totient is φ = 144307571360.

The previous prime is 216461356987. The next prime is 216461357089. The reversal of 216461357043 is 340753164612.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 216461357043 - 2¹⁷ = 216461225971 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 216461356986 and 216461357004.

It is not an unprimeable number, because it can be changed into a prime (216461357143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36076892838 + ... + 36076892843.

It is an arithmetic number, because the mean of its divisors is an integer number (72153785682).

Almost surely, 2^216461357043 is an apocalyptic number.

216461357043 is a deficient number, since it is larger than the sum of its proper divisors (72153785685).

216461357043 is an equidigital number, since it uses as much as digits as its factorization.

216461357043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72153785684.

The product of its (nonzero) digits is 362880, while the sum is 42.

The spelling of 216461357043 in words is "two hundred sixteen billion, four hundred sixty-one million, three hundred fifty-seven thousand, forty-three".