210540162215156 has 12 divisors (see below), whose sum is σ = 375397081685892. Its totient is φ = 103283853162048.

The previous prime is 210540162215113. The next prime is 210540162215203. The reversal of 210540162215156 is 651512261045012.

It can be written as a sum of positive squares in 2 ways, for example, as 155245768774756 + 55294393440400 = 12459766^2 + 7436020^2 .

It is a super-2 number, since 2×210540162215156² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 496556986145 + ... + 496556986568.

It is an arithmetic number, because the mean of its divisors is an integer number (31283090140491).

Almost surely, 2^{210540162215156} is an apocalyptic number.

It is an amenable number.

210540162215156 is a deficient number, since it is larger than the sum of its proper divisors (164856919470736).

210540162215156 is a wasteful number, since it uses less digits than its factorization.

210540162215156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993113972770 (or 993113972768 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 41.

The spelling of 210540162215156 in words is "two hundred ten trillion, five hundred forty billion, one hundred sixty-two million, two hundred fifteen thousand, one hundred fifty-six".