1164763664 has 30 divisors (see below), whose sum is σ = 2266977114. Its totient is φ = 579747840.

The previous prime is 1164763643. The next prime is 1164763667. The reversal of 1164763664 is 4663674611.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 166203664 + 998560000 = 12892^2 + 31600^2 .

It is not an unprimeable number, because it can be changed into a prime (1164763667) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1816784 + ... + 1817424.

Almost surely, 2^1164763664 is an apocalyptic number.

It is an amenable number.

1164763664 is a deficient number, since it is larger than the sum of its proper divisors (1102213450).

1164763664 is an frugal number, since it uses more digits than its factorization.

1164763664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323 (or 980 counting only the distinct ones).

The product of its digits is 435456, while the sum is 44.

The square root of 1164763664 is about 34128.6340775602. The cubic root of 1164763664 is about 1052.1539048204.

The spelling of 1164763664 in words is "one billion, one hundred sixty-four million, seven hundred sixty-three thousand, six hundred sixty-four".