2154620160 has 648 divisors, whose sum is σ = 9487479456. Its totient is φ = 446423040.

The previous prime is 2154620141. The next prime is 2154620177. The reversal of 2154620160 is 610264512.

2154620160 is a `hidden beast` number, since 21 + 5 + 4 + 620 + 16 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 6209107 + ... + 6209453.

It is an arithmetic number, because the mean of its divisors is an integer number (14641172).

Almost surely, 2^2154620160 is an apocalyptic number.

2154620160 is a gapful number since it is divisible by the number (20) 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 2154620160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4743739728).

2154620160 is an abundant number, since it is smaller than the sum of its proper divisors (7332859296).

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

2154620160 is a wasteful number, since it uses less digits than its factorization.

2154620160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399 (or 375 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 2154620160 is about 46417.8862077971. The cubic root of 2154620160 is about 1291.5867260597.

Adding to 2154620160 its reverse (610264512), we get a palindrome (2764884672).

The spelling of 2154620160 in words is "two billion, one hundred fifty-four million, six hundred twenty thousand, one hundred sixty".