16155944910 has 336 divisors, whose sum is σ = 52650457056. Its totient is φ = 3494441088.

The previous prime is 16155944899. The next prime is 16155944911. The reversal of 16155944910 is 1944955161.

16155944910 is a `hidden beast` number, since 1 + 6 + 1 + 5 + 594 + 49 + 10 = 666.

It is a super-2 number, since 2×16155944910² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16155944911) 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 167 ways as a sum of consecutive naturals, for example, 18421392 + ... + 18422268.

Almost surely, 2^16155944910 is an apocalyptic number.

16155944910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16155944910, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26325228528).

16155944910 is an abundant number, since it is smaller than the sum of its proper divisors (36494512146).

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

16155944910 is an equidigital number, since it uses as much as digits as its factorization.

16155944910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947 (or 913 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 45.

The spelling of 16155944910 in words is "sixteen billion, one hundred fifty-five million, nine hundred forty-four thousand, nine hundred ten".