1634666357012 has 12 divisors (see below), whose sum is σ = 3080717365236. Its totient is φ = 754461395520.

The previous prime is 1634666356949. The next prime is 1634666357057. The reversal of 1634666357012 is 2107536664361.

It can be written as a sum of positive squares in 2 ways, for example, as 116339659396 + 1518326697616 = 341086^2 + 1232204^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15717945689 + ... + 15717945792.

It is an arithmetic number, because the mean of its divisors is an integer number (256726447103).

Almost surely, 2^{1634666357012} is an apocalyptic number.

It is an amenable number.

1634666357012 is a deficient number, since it is larger than the sum of its proper divisors (1446051008224).

1634666357012 is a wasteful number, since it uses less digits than its factorization.

1634666357012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31435891498 (or 31435891496 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 50.

The spelling of 1634666357012 in words is "one trillion, six hundred thirty-four billion, six hundred sixty-six million, three hundred fifty-seven thousand, twelve".