80161862049 has 24 divisors (see below), whose sum is σ = 122016398400. Its totient is φ = 50573354400.

The previous prime is 80161862009. The next prime is 80161862063. The reversal of 80161862049 is 94026816108.

80161862049 is a `hidden beast` number, since 8 + 0 + 1 + 6 + 18 + 620 + 4 + 9 = 666.

It is not a de Polignac number, because 80161862049 - 2¹³ = 80161853857 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80161861995 and 80161862013.

It is not an unprimeable number, because it can be changed into a prime (80161862009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97902 + ... + 412199.

It is an arithmetic number, because the mean of its divisors is an integer number (5084016600).

Almost surely, 2^80161862049 is an apocalyptic number.

It is an amenable number.

80161862049 is a deficient number, since it is larger than the sum of its proper divisors (41854536351).

80161862049 is a wasteful number, since it uses less digits than its factorization.

80161862049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511045 (or 511042 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The spelling of 80161862049 in words is "eighty billion, one hundred sixty-one million, eight hundred sixty-two thousand, forty-nine".