77166361 has 8 divisors (see below), whose sum is σ = 80078400. Its totient is φ = 74271120.

The previous prime is 77166317. The next prime is 77166371. The reversal of 77166361 is 16366177.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 77166361 - 2¹¹ = 77164313 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 77166361.

It is not an unprimeable number, because it can be changed into a prime (77166301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5580 + ... + 13618.

It is an arithmetic number, because the mean of its divisors is an integer number (10009800).

Almost surely, 2^77166361 is an apocalyptic number.

It is an amenable number.

77166361 is a deficient number, since it is larger than the sum of its proper divisors (2912039).

77166361 is a wasteful number, since it uses less digits than its factorization.

77166361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8399.

The product of its digits is 31752, while the sum is 37.

The square root of 77166361 is about 8784.4385705633. The cubic root of 77166361 is about 425.7382527351.

The spelling of 77166361 in words is "seventy-seven million, one hundred sixty-six thousand, three hundred sixty-one".