16440263154 has 96 divisors (see below), whose sum is σ = 42742177920. Its totient is φ = 4467488256.

The previous prime is 16440263141. The next prime is 16440263159. The reversal of 16440263154 is 45136204461.

16440263154 is a `hidden beast` number, since 1 + 6 + 440 + 2 + 63 + 154 = 666.

It is a super-3 number, since 3×16440263154³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (16440263159) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 211242 + ... + 278394.

It is an arithmetic number, because the mean of its divisors is an integer number (445231020).

Almost surely, 2^16440263154 is an apocalyptic number.

16440263154 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16440263154, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21371088960).

16440263154 is an abundant number, since it is smaller than the sum of its proper divisors (26301914766).

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

16440263154 is a wasteful number, since it uses less digits than its factorization.

16440263154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67264 (or 67261 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 16440263154 in words is "sixteen billion, four hundred forty million, two hundred sixty-three thousand, one hundred fifty-four".