16940131954 has 8 divisors (see below), whose sum is σ = 25465080960. Its totient is φ = 8451771636.

The previous prime is 16940131931. The next prime is 16940131961. The reversal of 16940131954 is 45913104961.

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

It is a self number, because there is not a number n which added to its sum of digits gives 16940131954.

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, 9146014 + ... + 9147865.

It is an arithmetic number, because the mean of its divisors is an integer number (3183135120).

Almost surely, 2^16940131954 is an apocalyptic number.

16940131954 is a deficient number, since it is larger than the sum of its proper divisors (8524949006).

16940131954 is a wasteful number, since it uses less digits than its factorization.

16940131954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18294344.

The product of its (nonzero) digits is 116640, while the sum is 43.

The spelling of 16940131954 in words is "sixteen billion, nine hundred forty million, one hundred thirty-one thousand, nine hundred fifty-four".