16488817490 has 8 divisors (see below), whose sum is σ = 29679871500. Its totient is φ = 6595526992.

The previous prime is 16488817363. The next prime is 16488817493. The reversal of 16488817490 is 9471888461.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 16065816001 + 423001489 = 126751^2 + 20567^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×16488817490² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16488817493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 824440865 + ... + 824440884.

Almost surely, 2^16488817490 is an apocalyptic number.

16488817490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16488817490 is a deficient number, since it is larger than the sum of its proper divisors (13191054010).

16488817490 is a wasteful number, since it uses less digits than its factorization.

16488817490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1648881756.

The product of its (nonzero) digits is 3096576, while the sum is 56.

The spelling of 16488817490 in words is "sixteen billion, four hundred eighty-eight million, eight hundred seventeen thousand, four hundred ninety".