162687538944 has 1296 divisors, whose sum is σ = 621593481600. Its totient is φ = 40577531904.

The previous prime is 162687538919. The next prime is 162687538997. The reversal of 162687538944 is 449835786261.

162687538944 is a `hidden beast` number, since 1 + 6 + 2 + 6 + 8 + 7 + 538 + 94 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2059335897 + ... + 2059335975.

It is an arithmetic number, because the mean of its divisors is an integer number (479624600).

Almost surely, 2^162687538944 is an apocalyptic number.

162687538944 is a gapful number since it is divisible by the number (14) 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 162687538944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (310796740800).

162687538944 is an abundant number, since it is smaller than the sum of its proper divisors (458905942656).

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

162687538944 is a wasteful number, since it uses less digits than its factorization.

162687538944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 174 counting only the distinct ones).

The product of its digits is 69672960, while the sum is 63.

The spelling of 162687538944 in words is "one hundred sixty-two billion, six hundred eighty-seven million, five hundred thirty-eight thousand, nine hundred forty-four".