145444426064640 has 108 divisors (see below), whose sum is σ = 503222563762464. Its totient is φ = 38785180280832.

The previous prime is 145444426064591. The next prime is 145444426064657. The reversal of 145444426064640 is 46460624444541.

145444426064640 is a `hidden beast` number, since 1 + 4 + 5 + 44 + 442 + 60 + 64 + 6 + 40 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6312680584 + ... + 6312703623.

Almost surely, 2^{145444426064640} is an apocalyptic number.

145444426064640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145444426064640 is an abundant number, since it is smaller than the sum of its proper divisors (357778137697824).

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

145444426064640 is a wasteful number, since it uses less digits than its factorization.

145444426064640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12625384234 (or 12625384217 counting only the distinct ones).

The product of its (nonzero) digits is 35389440, while the sum is 54.

The spelling of 145444426064640 in words is "one hundred forty-five trillion, four hundred forty-four billion, four hundred twenty-six million, sixty-four thousand, six hundred forty".