65675537406 has 48 divisors (see below), whose sum is σ = 142872724800. Its totient is φ = 21803433984.

The previous prime is 65675537377. The next prime is 65675537407. The reversal of 65675537406 is 60473557656.

65675537406 is a `hidden beast` number, since 6 + 5 + 67 + 5 + 537 + 40 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65675537407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5338110 + ... + 5350398.

It is an arithmetic number, because the mean of its divisors is an integer number (2976515100).

Almost surely, 2^65675537406 is an apocalyptic number.

65675537406 is an abundant number, since it is smaller than the sum of its proper divisors (77197187394).

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

65675537406 is a wasteful number, since it uses less digits than its factorization.

65675537406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13473 (or 13470 counting only the distinct ones).

The product of its (nonzero) digits is 15876000, while the sum is 54.

The spelling of 65675537406 in words is "sixty-five billion, six hundred seventy-five million, five hundred thirty-seven thousand, four hundred six".