3501401662220 has 216 divisors, whose sum is σ = 9954744283008. Its totient is φ = 1027148559360.

The previous prime is 3501401662211. The next prime is 3501401662261. The reversal of 3501401662220 is 222661041053.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1147397 + ... + 2884323.

It is an arithmetic number, because the mean of its divisors is an integer number (46086779088).

Almost surely, 2^{3501401662220} 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 3501401662220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4977372141504).

3501401662220 is an abundant number, since it is smaller than the sum of its proper divisors (6453342620788).

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

3501401662220 is a wasteful number, since it uses less digits than its factorization.

3501401662220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1736989 (or 1736969 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 3501401662220 in words is "three trillion, five hundred one billion, four hundred one million, six hundred sixty-two thousand, two hundred twenty".