1663306613734 has 16 divisors (see below), whose sum is σ = 2605659782400. Its totient is φ = 794815112520.

The previous prime is 1663306613629. The next prime is 1663306613747. The reversal of 1663306613734 is 4373166033661.

It is a super-3 number, since 3×1663306613734³ (a number of 38 digits) contains 333 as substring.

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 7 ways as a sum of consecutive naturals, for example, 15385434 + ... + 15493165.

It is an arithmetic number, because the mean of its divisors is an integer number (162853736400).

Almost surely, 2^{1663306613734} is an apocalyptic number.

1663306613734 is a deficient number, since it is larger than the sum of its proper divisors (942353168666).

1663306613734 is a wasteful number, since it uses less digits than its factorization.

1663306613734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30879795.

The product of its (nonzero) digits is 2939328, while the sum is 49.

The spelling of 1663306613734 in words is "one trillion, six hundred sixty-three billion, three hundred six million, six hundred thirteen thousand, seven hundred thirty-four".