1640622285120 has 896 divisors, whose sum is σ = 6656405962752. Its totient is φ = 333036748800.

The previous prime is 1640622285041. The next prime is 1640622285217. The reversal of 1640622285120 is 215822260461.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

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, 490175287 + ... + 490178633.

It is an arithmetic number, because the mean of its divisors is an integer number (7429024512).

Almost surely, 2^{1640622285120} is an apocalyptic number.

1640622285120 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 1640622285120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3328202981376).

1640622285120 is an abundant number, since it is smaller than the sum of its proper divisors (5015783677632).

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

1640622285120 is a wasteful number, since it uses less digits than its factorization.

1640622285120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3599 (or 3589 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

The spelling of 1640622285120 in words is "one trillion, six hundred forty billion, six hundred twenty-two million, two hundred eighty-five thousand, one hundred twenty".