2150500161521 has 2 divisors, whose sum is σ = 2150500161522. Its totient is φ = 2150500161520.

The previous prime is 2150500161503. The next prime is 2150500161533. The reversal of 2150500161521 is 1251610050512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1464644550625 + 685855610896 = 1210225^2 + 828164^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2150500161521 is a prime.

It is not a weakly prime, because it can be changed into another prime (2150500161571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1075250080760 + 1075250080761.

It is an arithmetic number, because the mean of its divisors is an integer number (1075250080761).

Almost surely, 2^{2150500161521} is an apocalyptic number.

It is an amenable number.

2150500161521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2150500161521 is an equidigital number, since it uses as much as digits as its factorization.

2150500161521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3000, while the sum is 29.

The spelling of 2150500161521 in words is "two trillion, one hundred fifty billion, five hundred million, one hundred sixty-one thousand, five hundred twenty-one".