145508451785616 has 80 divisors (see below), whose sum is σ = 399182478632640. Its totient is φ = 45543399874560.

The previous prime is 145508451785563. The next prime is 145508451785659. The reversal of 145508451785616 is 616587154805541.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 705864825 + ... + 706070936.

It is an arithmetic number, because the mean of its divisors is an integer number (4989780982908).

Almost surely, 2^{145508451785616} is an apocalyptic number.

145508451785616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

145508451785616 is an abundant number, since it is smaller than the sum of its proper divisors (253674026847024).

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

145508451785616 is a wasteful number, since it uses less digits than its factorization.

145508451785616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1411935904 (or 1411935898 counting only the distinct ones).

The product of its (nonzero) digits is 161280000, while the sum is 66.

The spelling of 145508451785616 in words is "one hundred forty-five trillion, five hundred eight billion, four hundred fifty-one million, seven hundred eighty-five thousand, six hundred sixteen".