145660851981388 has 6 divisors (see below), whose sum is σ = 254906490967436. Its totient is φ = 72830425990692.

The previous prime is 145660851981347. The next prime is 145660851981401. The reversal of 145660851981388 is 883189158066541.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 145660851981388.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18207606497670 + ... + 18207606497677.

Almost surely, 2^{145660851981388} is an apocalyptic number.

It is an amenable number.

145660851981388 is a deficient number, since it is larger than the sum of its proper divisors (109245638986048).

145660851981388 is a wasteful number, since it uses less digits than its factorization.

145660851981388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36415212995351 (or 36415212995349 counting only the distinct ones).

The product of its (nonzero) digits is 398131200, while the sum is 73.

The spelling of 145660851981388 in words is "one hundred forty-five trillion, six hundred sixty billion, eight hundred fifty-one million, nine hundred eighty-one thousand, three hundred eighty-eight".