64146525763556 has 12 divisors (see below), whose sum is σ = 118164652722480. Its totient is φ = 30385196414280.

The previous prime is 64146525763553. The next prime is 64146525763591. The reversal of 64146525763556 is 65536752564146.

It is a super-2 number, since 2×64146525763556² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64146525763492 and 64146525763501.

It is not an unprimeable number, because it can be changed into a prime (64146525763553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 422016616790 + ... + 422016616941.

It is an arithmetic number, because the mean of its divisors is an integer number (9847054393540).

Almost surely, 2^{64146525763556} is an apocalyptic number.

It is an amenable number.

64146525763556 is a deficient number, since it is larger than the sum of its proper divisors (54018126958924).

64146525763556 is a wasteful number, since it uses less digits than its factorization.

64146525763556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844033233754 (or 844033233752 counting only the distinct ones).

The product of its digits is 544320000, while the sum is 65.

The spelling of 64146525763556 in words is "sixty-four trillion, one hundred forty-six billion, five hundred twenty-five million, seven hundred sixty-three thousand, five hundred fifty-six".