64042156199 has 8 divisors (see below), whose sum is σ = 73206550560. Its totient is φ = 54881640576.

The previous prime is 64042156183. The next prime is 64042156223. The reversal of 64042156199 is 99165124046.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64042156199 - 2⁴ = 64042156183 is a prime.

It is a super-2 number, since 2×64042156199² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64042153199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 934214 + ... + 1000419.

It is an arithmetic number, because the mean of its divisors is an integer number (9150818820).

Almost surely, 2^64042156199 is an apocalyptic number.

64042156199 is a deficient number, since it is larger than the sum of its proper divisors (9164394361).

64042156199 is a wasteful number, since it uses less digits than its factorization.

64042156199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1939369.

The product of its (nonzero) digits is 466560, while the sum is 47.

The spelling of 64042156199 in words is "sixty-four billion, forty-two million, one hundred fifty-six thousand, one hundred ninety-nine".