16497890354 has 16 divisors (see below), whose sum is σ = 27366366240. Its totient is φ = 7396313760.

The previous prime is 16497890347. The next prime is 16497890371. The reversal of 16497890354 is 45309879461.

It is a super-2 number, since 2×16497890354² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16497890354.

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, 5134724 + ... + 5137935.

It is an arithmetic number, because the mean of its divisors is an integer number (1710397890).

Almost surely, 2^16497890354 is an apocalyptic number.

16497890354 is a deficient number, since it is larger than the sum of its proper divisors (10868475886).

16497890354 is a wasteful number, since it uses less digits than its factorization.

16497890354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10272745.

The product of its (nonzero) digits is 6531840, while the sum is 56.

The spelling of 16497890354 in words is "sixteen billion, four hundred ninety-seven million, eight hundred ninety thousand, three hundred fifty-four".