218145695086 has 32 divisors (see below), whose sum is σ = 370539463680. Its totient is φ = 95422382400.

The previous prime is 218145695059. The next prime is 218145695093. The reversal of 218145695086 is 680596541812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 771391 + ... + 1015546.

It is an arithmetic number, because the mean of its divisors is an integer number (11579358240).

Almost surely, 2^218145695086 is an apocalyptic number.

218145695086 is a deficient number, since it is larger than the sum of its proper divisors (152393768594).

218145695086 is a wasteful number, since it uses less digits than its factorization.

218145695086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1787160.

The product of its (nonzero) digits is 4147200, while the sum is 55.

The spelling of 218145695086 in words is "two hundred eighteen billion, one hundred forty-five million, six hundred ninety-five thousand, eighty-six".