145621452212552 has 16 divisors (see below), whose sum is σ = 273041322606000. Its totient is φ = 72810432850960.

The previous prime is 145621452212543. The next prime is 145621452212611. The reversal of 145621452212552 is 255212254126541.

It is a junction number, because it is equal to n+sod(n) for n = 145621452212497 and 145621452212506.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34539302 + ... + 38525397.

It is an arithmetic number, because the mean of its divisors is an integer number (17065082662875).

Almost surely, 2^{145621452212552} is an apocalyptic number.

It is an amenable number.

145621452212552 is a deficient number, since it is larger than the sum of its proper divisors (127419870393448).

145621452212552 is a wasteful number, since it uses less digits than its factorization.

145621452212552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73313836 (or 73313832 counting only the distinct ones).

The product of its digits is 1920000, while the sum is 47.

The spelling of 145621452212552 in words is "one hundred forty-five trillion, six hundred twenty-one billion, four hundred fifty-two million, two hundred twelve thousand, five hundred fifty-two".