1631066615166 has 64 divisors (see below), whose sum is σ = 3317813291520. Its totient is φ = 534476997120.

The previous prime is 1631066615089. The next prime is 1631066615177. The reversal of 1631066615166 is 6615166601361.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 218024146 + ... + 218031626.

It is an arithmetic number, because the mean of its divisors is an integer number (51840832680).

Almost surely, 2^{1631066615166} is an apocalyptic number.

1631066615166 is an abundant number, since it is smaller than the sum of its proper divisors (1686746676354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1631066615166 is a wasteful number, since it uses less digits than its factorization.

1631066615166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9681.

The product of its (nonzero) digits is 699840, while the sum is 48.

The spelling of 1631066615166 in words is "one trillion, six hundred thirty-one billion, sixty-six million, six hundred fifteen thousand, one hundred sixty-six".