64251066122460 has 144 divisors (see below), whose sum is σ = 232421247991296. Its totient is φ = 14047438052736.

The previous prime is 64251066122357. The next prime is 64251066122497. The reversal of 64251066122460 is 6422166015246.

64251066122460 is a `hidden beast` number, since 6 + 4 + 2 + 5 + 1 + 0 + 6 + 612 + 24 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1108512534 + ... + 1108570493.

It is an arithmetic number, because the mean of its divisors is an integer number (1614036444384).

Almost surely, 2^{64251066122460} is an apocalyptic number.

64251066122460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64251066122460 is an abundant number, since it is smaller than the sum of its proper divisors (168170181868836).

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

64251066122460 is a wasteful number, since it uses less digits than its factorization.

64251066122460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2217083072 (or 2217083067 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The spelling of 64251066122460 in words is "sixty-four trillion, two hundred fifty-one billion, sixty-six million, one hundred twenty-two thousand, four hundred sixty".