80951061361 has 9 divisors (see below), whose sum is σ = 83847279243. Its totient is φ = 78151678920.

The previous prime is 80951061353. The next prime is 80951061379. The reversal of 80951061361 is 16316015908.

The square root of 80951061361 is 284519.

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

It can be written as a sum of positive squares in only one way, i.e., 42448772961 + 38502288400 = 206031^2 + 196220^2 .

It is not a de Polignac number, because 80951061361 - 2³ = 80951061353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80951061311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8246146 + ... + 8255956.

Almost surely, 2^80951061361 is an apocalyptic number.

80951061361 is the 284519-th square number.

80951061361 is the 142260-th centered octagonal number.

It is an amenable number.

80951061361 is a deficient number, since it is larger than the sum of its proper divisors (2896217882).

80951061361 is an frugal number, since it uses more digits than its factorization.

80951061361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19680 (or 9840 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 40.

The spelling of 80951061361 in words is "eighty billion, nine hundred fifty-one million, sixty-one thousand, three hundred sixty-one".