2155434325633 has 8 divisors (see below), whose sum is σ = 2282245099560. Its totient is φ = 2028625831680.

The previous prime is 2155434325607. The next prime is 2155434325661. The reversal of 2155434325633 is 3365234345512.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 671257405809 + 1484176919824 = 819303^2 + 1218268^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2155434325633 - 2¹³ = 2155434317441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2155432325633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1615923 + ... + 2630983.

It is an arithmetic number, because the mean of its divisors is an integer number (285280637445).

Almost surely, 2^{2155434325633} is an apocalyptic number.

It is an amenable number.

2155434325633 is a deficient number, since it is larger than the sum of its proper divisors (126810773927).

2155434325633 is a wasteful number, since it uses less digits than its factorization.

2155434325633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139987.

The product of its digits is 3888000, while the sum is 46.

The spelling of 2155434325633 in words is "two trillion, one hundred fifty-five billion, four hundred thirty-four million, three hundred twenty-five thousand, six hundred thirty-three".