2150661633433 has 16 divisors (see below), whose sum is σ = 2279524159440. Its totient is φ = 2022061694976.

The previous prime is 2150661633409. The next prime is 2150661633457. The reversal of 2150661633433 is 3343361660512.

It is an interprime number because it is at equal distance from previous prime (2150661633409) and next prime (2150661633457).

It can be written as a sum of positive squares in 8 ways, for example, as 621759059289 + 1528902574144 = 788517^2 + 1236488^2 .

It is a cyclic number.

It is not a de Polignac number, because 2150661633433 - 2²⁵ = 2150628079001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2150661633433.

It is not an unprimeable number, because it can be changed into a prime (2150661639433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67920541 + ... + 67952197.

It is an arithmetic number, because the mean of its divisors is an integer number (142470259965).

Almost surely, 2^{2150661633433} is an apocalyptic number.

It is an amenable number.

2150661633433 is a deficient number, since it is larger than the sum of its proper divisors (128862526007).

2150661633433 is a wasteful number, since it uses less digits than its factorization.

2150661633433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35676.

The product of its (nonzero) digits is 699840, while the sum is 43.

The spelling of 2150661633433 in words is "two trillion, one hundred fifty billion, six hundred sixty-one million, six hundred thirty-three thousand, four hundred thirty-three".