2001455643150 has 36 divisors (see below), whose sum is σ = 5377244162472. Its totient is φ = 533721504720.

The previous prime is 2001455643137. The next prime is 2001455643151. The reversal of 2001455643150 is 513465541002.

2001455643150 is a `hidden beast` number, since 2 + 0 + 0 + 1 + 4 + 5 + 5 + 643 + 1 + 5 + 0 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001455643151) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2223839154 + ... + 2223840053.

It is an arithmetic number, because the mean of its divisors is an integer number (149367893402).

Almost surely, 2^{2001455643150} is an apocalyptic number.

2001455643150 is an abundant number, since it is smaller than the sum of its proper divisors (3375788519322).

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

2001455643150 is a wasteful number, since it uses less digits than its factorization.

2001455643150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4447679225 (or 4447679217 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 2001455643150 in words is "two trillion, one billion, four hundred fifty-five million, six hundred forty-three thousand, one hundred fifty".