145561450361512 has 16 divisors (see below), whose sum is σ = 272937990692340. Its totient is φ = 72777986176896.

The previous prime is 145561450361489. The next prime is 145561450361573. The reversal of 145561450361512 is 215163054165541.

It can be written as a sum of positive squares in 2 ways, for example, as 107219273646276 + 38342176715236 = 10354674^2 + 6192106^2 .

It is a super-2 number, since 2×145561450361512² (a number of 29 digits) contains 22 as substring.

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, 342149613 + ... + 342574780.

Almost surely, 2^{145561450361512} is an apocalyptic number.

It is an amenable number.

145561450361512 is a deficient number, since it is larger than the sum of its proper divisors (127376540330828).

145561450361512 is a wasteful number, since it uses less digits than its factorization.

145561450361512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684750972 (or 684750968 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 49.

The spelling of 145561450361512 in words is "one hundred forty-five trillion, five hundred sixty-one billion, four hundred fifty million, three hundred sixty-one thousand, five hundred twelve".