162774360144 has 120 divisors (see below), whose sum is σ = 497321589024. Its totient is φ = 49289184000.

The previous prime is 162774360121. The next prime is 162774360149. The reversal of 162774360144 is 441063477261.

162774360144 is a `hidden beast` number, since 1 + 6 + 2 + 77 + 436 + 0 + 144 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 162774360144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162774360149) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2150299 + ... + 2224709.

Almost surely, 2^162774360144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 162774360144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248660794512).

162774360144 is an abundant number, since it is smaller than the sum of its proper divisors (334547228880).

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

162774360144 is a wasteful number, since it uses less digits than its factorization.

162774360144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75817 (or 75808 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 45.

The spelling of 162774360144 in words is "one hundred sixty-two billion, seven hundred seventy-four million, three hundred sixty thousand, one hundred forty-four".