16640113254 has 32 divisors (see below), whose sum is σ = 34131989760. Its totient is φ = 5405333472.

The previous prime is 16640113219. The next prime is 16640113279. The reversal of 16640113254 is 45231104661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39804 + ... + 186720.

It is an arithmetic number, because the mean of its divisors is an integer number (1066624680).

Almost surely, 2^16640113254 is an apocalyptic number.

16640113254 is an abundant number, since it is smaller than the sum of its proper divisors (17491876506).

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

16640113254 is a wasteful number, since it uses less digits than its factorization.

16640113254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147404.

The product of its (nonzero) digits is 17280, while the sum is 33.

The spelling of 16640113254 in words is "sixteen billion, six hundred forty million, one hundred thirteen thousand, two hundred fifty-four".