145616641236512 has 24 divisors (see below), whose sum is σ = 286722976484700. Its totient is φ = 72798107526144.

The previous prime is 145616641236431. The next prime is 145616641236551. The reversal of 145616641236512 is 215632146616541.

It can be written as a sum of positive squares in 2 ways, for example, as 139317324332176 + 6299316904336 = 11803276^2 + 2509844^2 .

It is a super-2 number, since 2×145616641236512² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318927437 + ... + 319383692.

Almost surely, 2^{145616641236512} is an apocalyptic number.

It is an amenable number.

145616641236512 is a deficient number, since it is larger than the sum of its proper divisors (141106335248188).

145616641236512 is an equidigital number, since it uses as much as digits as its factorization.

145616641236512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638318268 (or 638318260 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 53.

The spelling of 145616641236512 in words is "one hundred forty-five trillion, six hundred sixteen billion, six hundred forty-one million, two hundred thirty-six thousand, five hundred twelve".