260070451525666 has 4 divisors (see below), whose sum is σ = 390105677288502. Its totient is φ = 130035225762832.

The previous prime is 260070451525663. The next prime is 260070451525693. The reversal of 260070451525666 is 666525154070062.

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., 160543470830625 + 99526980695041 = 12670575^2 + 9976321^2 .

It is not an unprimeable number, because it can be changed into a prime (260070451525663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65017612881415 + ... + 65017612881418.

Almost surely, 2^{260070451525666} is an apocalyptic number.

260070451525666 is a deficient number, since it is larger than the sum of its proper divisors (130035225762836).

260070451525666 is a wasteful number, since it uses less digits than its factorization.

260070451525666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130035225762835.

The product of its (nonzero) digits is 18144000, while the sum is 55.

The spelling of 260070451525666 in words is "two hundred sixty trillion, seventy billion, four hundred fifty-one million, five hundred twenty-five thousand, six hundred sixty-six".