16162878072 has 64 divisors (see below), whose sum is σ = 44186083200. Its totient is φ = 4886119040.

The previous prime is 16162878037. The next prime is 16162878101. The reversal of 16162878072 is 27087826161.

It is a super-2 number, since 2×16162878072² (a number of 21 digits) contains 22 as substring.

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, 37558 + ... + 183674.

It is an arithmetic number, because the mean of its divisors is an integer number (690407550).

Almost surely, 2^16162878072 is an apocalyptic number.

16162878072 is a gapful number since it is divisible by the number (12) 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 16162878072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22093041600).

16162878072 is an abundant number, since it is smaller than the sum of its proper divisors (28023205128).

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

16162878072 is a wasteful number, since it uses less digits than its factorization.

16162878072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146556 (or 146552 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 48.

The spelling of 16162878072 in words is "sixteen billion, one hundred sixty-two million, eight hundred seventy-eight thousand, seventy-two".