133964065565 has 8 divisors (see below), whose sum is σ = 175371140448. Its totient is φ = 97428411280.

The previous prime is 133964065561. The next prime is 133964065583. The reversal of 133964065565 is 565560469331.

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

It is not a de Polignac number, because 133964065565 - 2² = 133964065561 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133964065561) 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, 1217855087 + ... + 1217855196.

It is an arithmetic number, because the mean of its divisors is an integer number (21921392556).

Almost surely, 2^133964065565 is an apocalyptic number.

It is an amenable number.

133964065565 is a deficient number, since it is larger than the sum of its proper divisors (41407074883).

133964065565 is a wasteful number, since it uses less digits than its factorization.

133964065565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2435710299.

The product of its (nonzero) digits is 8748000, while the sum is 53.

The spelling of 133964065565 in words is "one hundred thirty-three billion, nine hundred sixty-four million, sixty-five thousand, five hundred sixty-five".