64156142545061 has 8 divisors (see below), whose sum is σ = 77180321858880. Its totient is φ = 52096717254528.

The previous prime is 64156142545007. The next prime is 64156142545063. The reversal of 64156142545061 is 16054524165146.

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 64156142545061 - 2¹⁰ = 64156142544037 is a prime.

It is a super-2 number, since 2×64156142545061² (a number of 28 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 (64156142545063) 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, 241188505676 + ... + 241188505941.

It is an arithmetic number, because the mean of its divisors is an integer number (9647540232360).

Almost surely, 2^{64156142545061} is an apocalyptic number.

It is an amenable number.

64156142545061 is a deficient number, since it is larger than the sum of its proper divisors (13024179313819).

64156142545061 is a wasteful number, since it uses less digits than its factorization.

64156142545061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482377011643.

The product of its (nonzero) digits is 3456000, while the sum is 50.

The spelling of 64156142545061 in words is "sixty-four trillion, one hundred fifty-six billion, one hundred forty-two million, five hundred forty-five thousand, sixty-one".