162778800930 has 64 divisors (see below), whose sum is σ = 400083615360. Its totient is φ = 42363288576.

The previous prime is 162778800901. The next prime is 162778800931. The reversal of 162778800930 is 39008877261.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (162778800931) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1534074 + ... + 1636746.

It is an arithmetic number, because the mean of its divisors is an integer number (6251306490).

Almost surely, 2^162778800930 is an apocalyptic number.

162778800930 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 162778800930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200041807680).

162778800930 is an abundant number, since it is smaller than the sum of its proper divisors (237304814430).

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

162778800930 is a wasteful number, since it uses less digits than its factorization.

162778800930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103955.

The product of its (nonzero) digits is 1016064, while the sum is 51.

The spelling of 162778800930 in words is "one hundred sixty-two billion, seven hundred seventy-eight million, eight hundred thousand, nine hundred thirty".