67535455212 has 84 divisors (see below), whose sum is σ = 187623147096. Its totient is φ = 21187578240.

The previous prime is 67535455177. The next prime is 67535455219. The reversal of 67535455212 is 21255453576.

It is a happy number.

67535455212 is a `hidden beast` number, since 6 + 7 + 53 + 545 + 52 + 1 + 2 = 666.

It is a super-2 number, since 2×67535455212² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (67535455219) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 631614 + ... + 730757.

It is an arithmetic number, because the mean of its divisors is an integer number (2233608894).

Almost surely, 2^67535455212 is an apocalyptic number.

It is an amenable number.

67535455212 is an abundant number, since it is smaller than the sum of its proper divisors (120087691884).

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

67535455212 is a wasteful number, since it uses less digits than its factorization.

67535455212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362410 (or 1362393 counting only the distinct ones).

The product of its digits is 1260000, while the sum is 45.

The spelling of 67535455212 in words is "sixty-seven billion, five hundred thirty-five million, four hundred fifty-five thousand, two hundred twelve".