1060819661521 has 9 divisors (see below), whose sum is σ = 1087367661649. Its totient is φ = 1034904812800.

The previous prime is 1060819661519. The next prime is 1060819661549. The reversal of 1060819661521 is 1251669180601.

The square root of 1060819661521 is 1029961.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 348146021521 + 712673640000 = 590039^2 + 844200^2 .

It is not a de Polignac number, because 1060819661521 - 2¹ = 1060819661519 is a prime.

It is a super-2 number, since 2×1060819661521² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1060819661501) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 42215841 + ... + 42240961.

Almost surely, 2^{1060819661521} is an apocalyptic number.

1060819661521 is the 1029961-st square number.

1060819661521 is the 514981-st centered octagonal number.

It is an amenable number.

1060819661521 is a deficient number, since it is larger than the sum of its proper divisors (26548000128).

1060819661521 is an frugal number, since it uses more digits than its factorization.

1060819661521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50324 (or 25162 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 46.

The spelling of 1060819661521 in words is "one trillion, sixty billion, eight hundred nineteen million, six hundred sixty-one thousand, five hundred twenty-one".