162666055613220 has 384 divisors, whose sum is σ = 495224440123392. Its totient is φ = 39743297126400.

The previous prime is 162666055613213. The next prime is 162666055613249. The reversal of 162666055613220 is 22316550666261.

162666055613220 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 12087832732 + ... + 12087846188.

It is an arithmetic number, because the mean of its divisors is an integer number (1289646979488).

Almost surely, 2^{162666055613220} is an apocalyptic number.

162666055613220 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 162666055613220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247612220061696).

162666055613220 is an abundant number, since it is smaller than the sum of its proper divisors (332558384510172).

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

162666055613220 is a wasteful number, since it uses less digits than its factorization.

162666055613220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15651 (or 15649 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 51.

The spelling of 162666055613220 in words is "one hundred sixty-two trillion, six hundred sixty-six billion, fifty-five million, six hundred thirteen thousand, two hundred twenty".