16177640080 has 120 divisors (see below), whose sum is σ = 43963525440. Its totient is φ = 5520049920.

The previous prime is 16177640077. The next prime is 16177640081. The reversal of 16177640080 is 8004677161.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (16177640081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 817341 + ... + 836899.

It is an arithmetic number, because the mean of its divisors is an integer number (366362712).

Almost surely, 2^16177640080 is an apocalyptic number.

16177640080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16177640080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21981762720).

16177640080 is an abundant number, since it is smaller than the sum of its proper divisors (27785885360).

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

16177640080 is a wasteful number, since it uses less digits than its factorization.

16177640080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19797 (or 19784 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The spelling of 16177640080 in words is "sixteen billion, one hundred seventy-seven million, six hundred forty thousand, eighty".