1167381664 has 48 divisors (see below), whose sum is σ = 2323383048. Its totient is φ = 577354752.

The previous prime is 1167381661. The next prime is 1167381667. The reversal of 1167381664 is 4661837611.

It is an interprime number because it is at equal distance from previous prime (1167381661) and next prime (1167381667).

It can be written as a sum of positive squares in 4 ways, for example, as 942981264 + 224400400 = 30708^2 + 14980^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1167381664.

It is not an unprimeable number, because it can be changed into a prime (1167381661) 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, 1592242 + ... + 1592974.

Almost surely, 2^1167381664 is an apocalyptic number.

It is an amenable number.

1167381664 is a deficient number, since it is larger than the sum of its proper divisors (1156001384).

1167381664 is a wasteful number, since it uses less digits than its factorization.

1167381664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1217 (or 1209 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The square root of 1167381664 is about 34166.9674393265. The cubic root of 1167381664 is about 1052.9416118949.

The spelling of 1167381664 in words is "one billion, one hundred sixty-seven million, three hundred eighty-one thousand, six hundred sixty-four".