260909316218 has 4 divisors (see below), whose sum is σ = 391363974330. Its totient is φ = 130454658108.

The previous prime is 260909316203. The next prime is 260909316251. The reversal of 260909316218 is 812613909062.

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

It can be written as a sum of positive squares in only one way, i.e., 253636126129 + 7273190089 = 503623^2 + 85283^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65227329053 + ... + 65227329056.

Almost surely, 2^260909316218 is an apocalyptic number.

260909316218 is a deficient number, since it is larger than the sum of its proper divisors (130454658112).

260909316218 is a wasteful number, since it uses less digits than its factorization.

260909316218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130454658111.

The product of its (nonzero) digits is 279936, while the sum is 47.

The spelling of 260909316218 in words is "two hundred sixty billion, nine hundred nine million, three hundred sixteen thousand, two hundred eighteen".