2150530258021 has 8 divisors (see below), whose sum is σ = 2162451360888. Its totient is φ = 2138609592000.

The previous prime is 2150530258003. The next prime is 2150530258061. The reversal of 2150530258021 is 1208520350512.

It can be written as a sum of positive squares in 4 ways, for example, as 68584276996 + 2081945981025 = 261886^2 + 1442895^2 .

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 2150530258021 - 2²³ = 2150521869413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2150530258001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18770691 + ... + 18884911.

It is an arithmetic number, because the mean of its divisors is an integer number (270306420111).

Almost surely, 2^{2150530258021} is an apocalyptic number.

It is an amenable number.

2150530258021 is a deficient number, since it is larger than the sum of its proper divisors (11921102867).

2150530258021 is a wasteful number, since it uses less digits than its factorization.

2150530258021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218423.

The product of its (nonzero) digits is 24000, while the sum is 34.

The spelling of 2150530258021 in words is "two trillion, one hundred fifty billion, five hundred thirty million, two hundred fifty-eight thousand, twenty-one".