18203569016490 has 512 divisors, whose sum is σ = 57860954726400. Its totient is φ = 4014225008640.

The previous prime is 18203569016473. The next prime is 18203569016509. The reversal of 18203569016490 is 9461096530281.

18203569016490 is a `hidden beast` number, since 1 + 8 + 2 + 0 + 3 + 56 + 90 + 16 + 490 = 666.

It is a super-2 number, since 2×18203569016490² (a number of 27 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 4529375701 + ... + 4529379719.

It is an arithmetic number, because the mean of its divisors is an integer number (113009677200).

Almost surely, 2^{18203569016490} is an apocalyptic number.

18203569016490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18203569016490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28930477363200).

18203569016490 is an abundant number, since it is smaller than the sum of its proper divisors (39657385709910).

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

18203569016490 is a wasteful number, since it uses less digits than its factorization.

18203569016490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5739 (or 5733 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The spelling of 18203569016490 in words is "eighteen trillion, two hundred three billion, five hundred sixty-nine million, sixteen thousand, four hundred ninety".