1650545136000 has 768 divisors, whose sum is σ = 6352878729600. Its totient is φ = 409599590400.

The previous prime is 1650545135983. The next prime is 1650545136007. The reversal of 1650545136000 is 6315450561.

1650545136000 is a `hidden beast` number, since 1 + 6 + 5 + 0 + 5 + 45 + 1 + 3 + 600 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1650545136007) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 122537266 + ... + 122550734.

Almost surely, 2^{1650545136000} is an apocalyptic number.

1650545136000 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 1650545136000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3176439364800).

1650545136000 is an abundant number, since it is smaller than the sum of its proper divisors (4702333593600).

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

1650545136000 is a wasteful number, since it uses less digits than its factorization.

1650545136000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13564 (or 13539 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 1650545136000 in words is "one trillion, six hundred fifty billion, five hundred forty-five million, one hundred thirty-six thousand".