1152699660 has 288 divisors, whose sum is σ = 4281618432. Its totient is φ = 254741760.

The previous prime is 1152699643. The next prime is 1152699661. The reversal of 1152699660 is 669962511.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1152699661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1054074 + ... + 1055166.

Almost surely, 2^1152699660 is an apocalyptic number.

1152699660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1152699660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2140809216).

1152699660 is an abundant number, since it is smaller than the sum of its proper divisors (3128918772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1152699660 is a wasteful number, since it uses less digits than its factorization.

1152699660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155 (or 1141 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The square root of 1152699660 is about 33951.4308976809. The cubic root of 1152699660 is about 1048.5087401876.

The spelling of 1152699660 in words is "one billion, one hundred fifty-two million, six hundred ninety-nine thousand, six hundred sixty".