64334153561 has 8 divisors (see below), whose sum is σ = 64475750400. Its totient is φ = 64192617360.

The previous prime is 64334153557. The next prime is 64334153567. The reversal of 64334153561 is 16535143346.

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 64334153561 - 2² = 64334153557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64334153567) 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, 2593226 + ... + 2617916.

It is an arithmetic number, because the mean of its divisors is an integer number (8059468800).

Almost surely, 2^64334153561 is an apocalyptic number.

It is an amenable number.

64334153561 is a deficient number, since it is larger than the sum of its proper divisors (141596839).

64334153561 is a wasteful number, since it uses less digits than its factorization.

64334153561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30319.

The product of its digits is 388800, while the sum is 41.

The spelling of 64334153561 in words is "sixty-four billion, three hundred thirty-four million, one hundred fifty-three thousand, five hundred sixty-one".