1161645707 has 2 divisors, whose sum is σ = 1161645708. Its totient is φ = 1161645706.

The previous prime is 1161645691. The next prime is 1161645757. The reversal of 1161645707 is 7075461611.

It is a weak prime.

It is an emirp because it is prime and its reverse (7075461611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1161645707 - 2⁴ = 1161645691 is a prime.

It is not a weakly prime, because it can be changed into another prime (1161645757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580822853 + 580822854.

It is an arithmetic number, because the mean of its divisors is an integer number (580822854).

Almost surely, 2^1161645707 is an apocalyptic number.

1161645707 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161645707 is an equidigital number, since it uses as much as digits as its factorization.

1161645707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 38.

The square root of 1161645707 is about 34082.9239796118. The cubic root of 1161645707 is about 1051.2142285727.

The spelling of 1161645707 in words is "one billion, one hundred sixty-one million, six hundred forty-five thousand, seven hundred seven".