1663113090531 has 32 divisors (see below), whose sum is σ = 2274597326848. Its totient is φ = 1080313264800.

The previous prime is 1663113090521. The next prime is 1663113090577. The reversal of 1663113090531 is 1350903113661.

It is not a de Polignac number, because 1663113090531 - 2¹³ = 1663113082339 is a prime.

It is a super-2 number, since 2×1663113090531² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1663113090531.

It is not an unprimeable number, because it can be changed into a prime (1663113090521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 311034000 + ... + 311039346.

It is an arithmetic number, because the mean of its divisors is an integer number (71081166464).

Almost surely, 2^{1663113090531} is an apocalyptic number.

1663113090531 is a deficient number, since it is larger than the sum of its proper divisors (611484236317).

1663113090531 is a wasteful number, since it uses less digits than its factorization.

1663113090531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10831.

The product of its (nonzero) digits is 43740, while the sum is 39.

The spelling of 1663113090531 in words is "one trillion, six hundred sixty-three billion, one hundred thirteen million, ninety thousand, five hundred thirty-one".