770615161 has 4 divisors (see below), whose sum is σ = 804120192. Its totient is φ = 737110132.

The previous prime is 770615147. The next prime is 770615201. The reversal of 770615161 is 161516077.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 770615161 - 2⁷ = 770615033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (770615101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16752481 + ... + 16752526.

It is an arithmetic number, because the mean of its divisors is an integer number (201030048).

Almost surely, 2^770615161 is an apocalyptic number.

It is an amenable number.

770615161 is a deficient number, since it is larger than the sum of its proper divisors (33505031).

770615161 is a wasteful number, since it uses less digits than its factorization.

770615161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33505030.

The product of its (nonzero) digits is 8820, while the sum is 34.

The square root of 770615161 is about 27759.9560698500. The cubic root of 770615161 is about 916.8096650669.

The spelling of 770615161 in words is "seven hundred seventy million, six hundred fifteen thousand, one hundred sixty-one".