67433400561 has 8 divisors (see below), whose sum is σ = 89913227040. Its totient is φ = 44954587232.

The previous prime is 67433400521. The next prime is 67433400569. The reversal of 67433400561 is 16500433476.

67433400561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 67433400561 - 2⁶ = 67433400497 is a prime.

It is a super-2 number, since 2×67433400561² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (67433400569) 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, 81300 + ... + 376133.

It is an arithmetic number, because the mean of its divisors is an integer number (11239153380).

Almost surely, 2^67433400561 is an apocalyptic number.

It is an amenable number.

67433400561 is a deficient number, since it is larger than the sum of its proper divisors (22479826479).

67433400561 is a wasteful number, since it uses less digits than its factorization.

67433400561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506575.

The product of its (nonzero) digits is 181440, while the sum is 39.

The spelling of 67433400561 in words is "sixty-seven billion, four hundred thirty-three million, four hundred thousand, five hundred sixty-one".