16111254990 has 16 divisors (see below), whose sum is σ = 38667012048. Its totient is φ = 4296334656.

The previous prime is 16111254983. The next prime is 16111255009. The reversal of 16111254990 is 9945211161.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268520887 + ... + 268520946.

It is an arithmetic number, because the mean of its divisors is an integer number (2416688253).

Almost surely, 2^16111254990 is an apocalyptic number.

16111254990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16111254990 is an abundant number, since it is smaller than the sum of its proper divisors (22555757058).

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

16111254990 is a wasteful number, since it uses less digits than its factorization.

16111254990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537041843.

The product of its (nonzero) digits is 19440, while the sum is 39.

The spelling of 16111254990 in words is "sixteen billion, one hundred eleven million, two hundred fifty-four thousand, nine hundred ninety".