1320652656 has 60 divisors (see below), whose sum is σ = 3703544208. Its totient is φ = 439318272.

The previous prime is 1320652649. The next prime is 1320652661. The reversal of 1320652656 is 6562560231.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1320652656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63316 + ... + 81548.

Almost surely, 2^1320652656 is an apocalyptic number.

1320652656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1320652656 is an abundant number, since it is smaller than the sum of its proper divisors (2382891552).

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

1320652656 is a wasteful number, since it uses less digits than its factorization.

1320652656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18750 (or 18741 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 1320652656 is about 36340.7850217906. The cubic root of 1320652656 is about 1097.1420732184.

The spelling of 1320652656 in words is "one billion, three hundred twenty million, six hundred fifty-two thousand, six hundred fifty-six".