16454546890 has 8 divisors (see below), whose sum is σ = 29618184420. Its totient is φ = 6581818752.

The previous prime is 16454546887. The next prime is 16454546903. The reversal of 16454546890 is 9864545461.

It can be written as a sum of positive squares in 2 ways, for example, as 16442163529 + 12383361 = 128227^2 + 3519^2 .

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

It is a super-2 number, since 2×16454546890² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 822727335 + ... + 822727354.

Almost surely, 2^16454546890 is an apocalyptic number.

16454546890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16454546890 is a deficient number, since it is larger than the sum of its proper divisors (13163637530).

16454546890 is a wasteful number, since it uses less digits than its factorization.

16454546890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1645454696.

The product of its (nonzero) digits is 4147200, while the sum is 52.

The spelling of 16454546890 in words is "sixteen billion, four hundred fifty-four million, five hundred forty-six thousand, eight hundred ninety".