2256466520666 has 8 divisors (see below), whose sum is σ = 3386859772800. Its totient is φ = 1127513263068.

The previous prime is 2256466520653. The next prime is 2256466520687. The reversal of 2256466520666 is 6660256646522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 359994716 + ... + 360000983.

It is an arithmetic number, because the mean of its divisors is an integer number (423357471600).

Almost surely, 2^{2256466520666} is an apocalyptic number.

2256466520666 is a deficient number, since it is larger than the sum of its proper divisors (1130393252134).

2256466520666 is a wasteful number, since it uses less digits than its factorization.

2256466520666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719997268.

The product of its (nonzero) digits is 37324800, while the sum is 56.

The spelling of 2256466520666 in words is "two trillion, two hundred fifty-six billion, four hundred sixty-six million, five hundred twenty thousand, six hundred sixty-six".