145013216643 has 12 divisors (see below), whose sum is σ = 214572402408. Its totient is φ = 94317539040.

The previous prime is 145013216639. The next prime is 145013216671. The reversal of 145013216643 is 346612310541.

145013216643 is a `hidden beast` number, since 1 + 4 + 5 + 0 + 1 + 3 + 2 + 1 + 6 + 643 = 666.

It is not a de Polignac number, because 145013216643 - 2² = 145013216639 is a prime.

It is a super-2 number, since 2×145013216643² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145013216598 and 145013216607.

It is not an unprimeable number, because it can be changed into a prime (145013216743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 196494505 + ... + 196495242.

It is an arithmetic number, because the mean of its divisors is an integer number (17881033534).

Almost surely, 2^145013216643 is an apocalyptic number.

145013216643 is a deficient number, since it is larger than the sum of its proper divisors (69559185765).

145013216643 is a wasteful number, since it uses less digits than its factorization.

145013216643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392989794 (or 392989791 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 145013216643 in words is "one hundred forty-five billion, thirteen million, two hundred sixteen thousand, six hundred forty-three".