997560132645 has 8 divisors (see below), whose sum is σ = 1596096212256. Its totient is φ = 532032070736.

The previous prime is 997560132643. The next prime is 997560132649. The reversal of 997560132645 is 546231065799.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 997560132645 - 2¹ = 997560132643 is a prime.

It is a super-3 number, since 3×997560132645³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997560132643) 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, 33252004407 + ... + 33252004436.

It is an arithmetic number, because the mean of its divisors is an integer number (199512026532).

Almost surely, 2^997560132645 is an apocalyptic number.

It is an amenable number.

997560132645 is a deficient number, since it is larger than the sum of its proper divisors (598536079611).

997560132645 is a wasteful number, since it uses less digits than its factorization.

997560132645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66504008851.

The product of its (nonzero) digits is 12247200, while the sum is 57.

The spelling of 997560132645 in words is "nine hundred ninety-seven billion, five hundred sixty million, one hundred thirty-two thousand, six hundred forty-five".