1011796586161 has 9 divisors (see below), whose sum is σ = 1013930524281. Its totient is φ = 1009667136084.

The previous prime is 1011796586107. The next prime is 1011796586167. The reversal of 1011796586161 is 1616856971101.

The square root of 1011796586161 is 1005881.

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

It is not a de Polignac number, because 1011796586161 - 2³⁹ = 462040772273 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011796586099 and 1011796586108.

It is not an unprimeable number, because it can be changed into a prime (1011796586167) 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 8 ways as a sum of consecutive naturals, for example, 723227740 + ... + 723229138.

Almost surely, 2^{1011796586161} is an apocalyptic number.

1011796586161 is the 1005881-st square number.

1011796586161 is the 502941-st centered octagonal number.

It is an amenable number.

1011796586161 is a deficient number, since it is larger than the sum of its proper divisors (2133938120).

1011796586161 is an frugal number, since it uses more digits than its factorization.

1011796586161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4236 (or 2118 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 52.

The spelling of 1011796586161 in words is "one trillion, eleven billion, seven hundred ninety-six million, five hundred eighty-six thousand, one hundred sixty-one".