64115161167722 has 128 divisors (see below), whose sum is σ = 113183673090048. Its totient is φ = 26675642649600.

The previous prime is 64115161167703. The next prime is 64115161167727. The reversal of 64115161167722 is 22776116151146.

It is a super-2 number, since 2×64115161167722² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64115161167727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11353841903 + ... + 11353847549.

It is an arithmetic number, because the mean of its divisors is an integer number (884247446016).

Almost surely, 2^{64115161167722} is an apocalyptic number.

64115161167722 is a deficient number, since it is larger than the sum of its proper divisors (49068511922326).

64115161167722 is a wasteful number, since it uses less digits than its factorization.

64115161167722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6484.

The product of its digits is 846720, while the sum is 50.

The spelling of 64115161167722 in words is "sixty-four trillion, one hundred fifteen billion, one hundred sixty-one million, one hundred sixty-seven thousand, seven hundred twenty-two".