1466631643494 has 16 divisors (see below), whose sum is σ = 2940230663280. Its totient is φ = 487715985120.

The previous prime is 1466631643493. The next prime is 1466631643507. The reversal of 1466631643494 is 4943461366641.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1466631643493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290304609 + ... + 290309660.

It is an arithmetic number, because the mean of its divisors is an integer number (183764416455).

Almost surely, 2^{1466631643494} is an apocalyptic number.

1466631643494 is an abundant number, since it is smaller than the sum of its proper divisors (1473599019786).

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

1466631643494 is a wasteful number, since it uses less digits than its factorization.

1466631643494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580614695.

The product of its digits is 26873856, while the sum is 57.

The spelling of 1466631643494 in words is "one trillion, four hundred sixty-six billion, six hundred thirty-one million, six hundred forty-three thousand, four hundred ninety-four".