64511158606836 has 12 divisors (see below), whose sum is σ = 150526036749312. Its totient is φ = 21503719535608.

The previous prime is 64511158606793. The next prime is 64511158606847. The reversal of 64511158606836 is 63860685111546.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 64511158606836.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2687964941940 + ... + 2687964941963.

It is an arithmetic number, because the mean of its divisors is an integer number (12543836395776).

Almost surely, 2^{64511158606836} is an apocalyptic number.

It is an amenable number.

64511158606836 is an abundant number, since it is smaller than the sum of its proper divisors (86014878142476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64511158606836 is a wasteful number, since it uses less digits than its factorization.

64511158606836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5375929883910 (or 5375929883908 counting only the distinct ones).

The product of its (nonzero) digits is 24883200, while the sum is 60.

The spelling of 64511158606836 in words is "sixty-four trillion, five hundred eleven billion, one hundred fifty-eight million, six hundred six thousand, eight hundred thirty-six".