1332617664 has 56 divisors (see below), whose sum is σ = 4029586048. Its totient is φ = 380747520.

The previous prime is 1332617653. The next prime is 1332617669. The reversal of 1332617664 is 4667162331.

It is a tau number, because it is divible by the number of its divisors (56).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1332617669) 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, 494422 + ... + 497109.

Almost surely, 2^1332617664 is an apocalyptic number.

1332617664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1332617664 is an abundant number, since it is smaller than the sum of its proper divisors (2696968384).

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

1332617664 is an equidigital number, since it uses as much as digits as its factorization.

1332617664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991553 (or 991543 counting only the distinct ones).

The product of its digits is 108864, while the sum is 39.

The square root of 1332617664 is about 36505.0361457156. The cubic root of 1332617664 is about 1100.4454570485.

Adding to 1332617664 its reverse (4667162331), we get a palindrome (5999779995).

The spelling of 1332617664 in words is "one billion, three hundred thirty-two million, six hundred seventeen thousand, six hundred sixty-four".