145453145462520 has 64 divisors (see below), whose sum is σ = 498696498731520. Its totient is φ = 33246433248384.

The previous prime is 145453145462483. The next prime is 145453145462563. The reversal of 145453145462520 is 25264541354541.

It is a happy number.

It is a congruent number.

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, 86579252412 + ... + 86579254091.

It is an arithmetic number, because the mean of its divisors is an integer number (7792132792680).

Almost surely, 2^{145453145462520} is an apocalyptic number.

145453145462520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145453145462520 is an abundant number, since it is smaller than the sum of its proper divisors (353243353269000).

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

145453145462520 is a wasteful number, since it uses less digits than its factorization.

145453145462520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173158506524 (or 173158506520 counting only the distinct ones).

The product of its (nonzero) digits is 11520000, while the sum is 51.

The spelling of 145453145462520 in words is "one hundred forty-five trillion, four hundred fifty-three billion, one hundred forty-five million, four hundred sixty-two thousand, five hundred twenty".