260216578 has 4 divisors (see below), whose sum is σ = 390324870. Its totient is φ = 130108288.

The previous prime is 260216461. The next prime is 260216587. The reversal of 260216578 is 875612062.

It is a happy number.

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., 143209089 + 117007489 = 11967^2 + 10817^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65054143 + ... + 65054146.

Almost surely, 2^260216578 is an apocalyptic number.

260216578 is a deficient number, since it is larger than the sum of its proper divisors (130108292).

260216578 is a wasteful number, since it uses less digits than its factorization.

260216578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130108291.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 260216578 is about 16131.2298973141. The cubic root of 260216578 is about 638.4275999342.

The spelling of 260216578 in words is "two hundred sixty million, two hundred sixteen thousand, five hundred seventy-eight".