65166170050 has 12 divisors (see below), whose sum is σ = 121209076386. Its totient is φ = 26066468000.

The previous prime is 65166170011. The next prime is 65166170059. The reversal of 65166170050 is 5007166156.

It can be written as a sum of positive squares in 3 ways, for example, as 59662459081 + 5503710969 = 244259^2 + 74187^2 .

It is a junction number, because it is equal to n+sod(n) for n = 65166169991 and 65166170009.

It is not an unprimeable number, because it can be changed into a prime (65166170059) 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 5 ways as a sum of consecutive naturals, for example, 651661651 + ... + 651661750.

Almost surely, 2^65166170050 is an apocalyptic number.

65166170050 is a deficient number, since it is larger than the sum of its proper divisors (56042906336).

65166170050 is a wasteful number, since it uses less digits than its factorization.

65166170050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303323413 (or 1303323408 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 37.

The spelling of 65166170050 in words is "sixty-five billion, one hundred sixty-six million, one hundred seventy thousand, fifty".