1663230463251 has 16 divisors (see below), whose sum is σ = 2536756798464. Its totient is φ = 949551015744.

The previous prime is 1663230463231. The next prime is 1663230463273. The reversal of 1663230463251 is 1523640323661.

It is not a de Polignac number, because 1663230463251 - 2¹¹ = 1663230461203 is a prime.

It is a super-2 number, since 2×1663230463251² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1663230463201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36076075 + ... + 36122148.

It is an arithmetic number, because the mean of its divisors is an integer number (158547299904).

Almost surely, 2^{1663230463251} is an apocalyptic number.

1663230463251 is a deficient number, since it is larger than the sum of its proper divisors (873526335213).

1663230463251 is a wasteful number, since it uses less digits than its factorization.

1663230463251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72199330.

The product of its (nonzero) digits is 466560, while the sum is 42.

The spelling of 1663230463251 in words is "one trillion, six hundred sixty-three billion, two hundred thirty million, four hundred sixty-three thousand, two hundred fifty-one".