64185562808057 has 8 divisors (see below), whose sum is σ = 66224416371840. Its totient is φ = 62177368696560.

The previous prime is 64185562808041. The next prime is 64185562808207. The reversal of 64185562808057 is 75080826558146.

It is a happy number.

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 64185562808057 - 2⁴ = 64185562808041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64185562807984 and 64185562808002.

It is not an unprimeable number, because it can be changed into a prime (64185562808357) 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, 7664858819 + ... + 7664867192.

It is an arithmetic number, because the mean of its divisors is an integer number (8278052046480).

Almost surely, 2^{64185562808057} is an apocalyptic number.

It is an amenable number.

64185562808057 is a deficient number, since it is larger than the sum of its proper divisors (2038853563783).

64185562808057 is a wasteful number, since it uses less digits than its factorization.

64185562808057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15329726143.

The product of its (nonzero) digits is 129024000, while the sum is 65.

The spelling of 64185562808057 in words is "sixty-four trillion, one hundred eighty-five billion, five hundred sixty-two million, eight hundred eight thousand, fifty-seven".