4215161153420 has 384 divisors, whose sum is σ = 10847174123520. Its totient is φ = 1345962885120.

The previous prime is 4215161153393. The next prime is 4215161153453. The reversal of 4215161153420 is 243511615124.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (35).

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, 2180630774 + ... + 2180632706.

It is an arithmetic number, because the mean of its divisors is an integer number (28247849280).

Almost surely, 2^{4215161153420} 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 4215161153420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5423587061760).

4215161153420 is an abundant number, since it is smaller than the sum of its proper divisors (6632012970100).

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

4215161153420 is a wasteful number, since it uses less digits than its factorization.

4215161153420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2233 (or 2231 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

Adding to 4215161153420 its reverse (243511615124), we get a palindrome (4458672768544).

The spelling of 4215161153420 in words is "four trillion, two hundred fifteen billion, one hundred sixty-one million, one hundred fifty-three thousand, four hundred twenty".