161426511360 has 320 divisors, whose sum is σ = 574335115200. Its totient is φ = 42976935936.

The previous prime is 161426511317. The next prime is 161426511361. The reversal of 161426511360 is 63115624161.

161426511360 is a `hidden beast` number, since 1 + 61 + 4 + 26 + 511 + 3 + 60 = 666.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161426511361) 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, 53151762 + ... + 53154798.

It is an arithmetic number, because the mean of its divisors is an integer number (1794797235).

Almost surely, 2^161426511360 is an apocalyptic number.

161426511360 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 161426511360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287167557600).

161426511360 is an abundant number, since it is smaller than the sum of its proper divisors (412908603840).

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

161426511360 is an equidigital number, since it uses as much as digits as its factorization.

161426511360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3838 (or 3816 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

It can be divided in two parts, 1614265 and 11360, that added together give a square (1625625 = 1275²).

The spelling of 161426511360 in words is "one hundred sixty-one billion, four hundred twenty-six million, five hundred eleven thousand, three hundred sixty".