1061885650165 has 16 divisors (see below), whose sum is σ = 1310216569200. Its totient is φ = 825833428992.

The previous prime is 1061885650087. The next prime is 1061885650183. The reversal of 1061885650165 is 5610565881601.

It can be written as a sum of positive squares in 8 ways, for example, as 32801194321 + 1029084455844 = 181111^2 + 1014438^2 .

It is a cyclic number.

It is not a de Polignac number, because 1061885650165 - 2³¹ = 1059738166517 is a prime.

It is a super-2 number, since 2×1061885650165² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 18352380 + ... + 18410149.

It is an arithmetic number, because the mean of its divisors is an integer number (81888535575).

Almost surely, 2^{1061885650165} is an apocalyptic number.

It is an amenable number.

1061885650165 is a deficient number, since it is larger than the sum of its proper divisors (248330919035).

1061885650165 is a wasteful number, since it uses less digits than its factorization.

1061885650165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36762696.

The product of its (nonzero) digits is 1728000, while the sum is 52.

The spelling of 1061885650165 in words is "one trillion, sixty-one billion, eight hundred eighty-five million, six hundred fifty thousand, one hundred sixty-five".