662110666550 has 12 divisors (see below), whose sum is σ = 1231525839876. Its totient is φ = 264844266600.

The previous prime is 662110666541. The next prime is 662110666559. The reversal of 662110666550 is 55666011266.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (662110666541) and next prime (662110666559).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662110666559) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6621106616 + ... + 6621106715.

It is an arithmetic number, because the mean of its divisors is an integer number (102627153323).

Almost surely, 2^662110666550 is an apocalyptic number.

662110666550 is a deficient number, since it is larger than the sum of its proper divisors (569415173326).

662110666550 is a wasteful number, since it uses less digits than its factorization.

662110666550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13242213343 (or 13242213338 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 44.

The spelling of 662110666550 in words is "six hundred sixty-two billion, one hundred ten million, six hundred sixty-six thousand, five hundred fifty".