64142136506612 has 6 divisors (see below), whose sum is σ = 112248738886578. Its totient is φ = 32071068253304.

The previous prime is 64142136506599. The next prime is 64142136506639. The reversal of 64142136506612 is 21660563124146.

It can be written as a sum of positive squares in only one way, i.e., 52936741783696 + 11205394722916 = 7275764^2 + 3347446^2 .

It is a super-2 number, since 2×64142136506612² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8017767063323 + ... + 8017767063330.

It is an arithmetic number, because the mean of its divisors is an integer number (18708123147763).

Almost surely, 2^{64142136506612} is an apocalyptic number.

It is an amenable number.

64142136506612 is a deficient number, since it is larger than the sum of its proper divisors (48106602379966).

64142136506612 is a wasteful number, since it uses less digits than its factorization.

64142136506612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16035534126657 (or 16035534126655 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 47.

The spelling of 64142136506612 in words is "sixty-four trillion, one hundred forty-two billion, one hundred thirty-six million, five hundred six thousand, six hundred twelve".