1650656413040 has 80 divisors (see below), whose sum is σ = 3864722954400. Its totient is φ = 655629296640.

The previous prime is 1650656413039. The next prime is 1650656413051. The reversal of 1650656413040 is 403146560561.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42189167 + ... + 42228273.

It is an arithmetic number, because the mean of its divisors is an integer number (48309036930).

Almost surely, 2^{1650656413040} is an apocalyptic number.

1650656413040 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 1650656413040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1932361477200).

1650656413040 is an abundant number, since it is smaller than the sum of its proper divisors (2214066541360).

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

1650656413040 is a wasteful number, since it uses less digits than its factorization.

1650656413040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42810 (or 42804 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 1650656413040 in words is "one trillion, six hundred fifty billion, six hundred fifty-six million, four hundred thirteen thousand, forty".