145552278641497 has 48 divisors (see below), whose sum is σ = 188232561753600. Its totient is φ = 111441172308480.

The previous prime is 145552278641477. The next prime is 145552278641501. The reversal of 145552278641497 is 794146872255541.

It is a de Polignac number, because none of the positive numbers 2^k-145552278641497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145552278641467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 374584129 + ... + 374972497.

It is an arithmetic number, because the mean of its divisors is an integer number (3921511703200).

Almost surely, 2^{145552278641497} is an apocalyptic number.

It is an amenable number.

145552278641497 is a deficient number, since it is larger than the sum of its proper divisors (42680283112103).

145552278641497 is a wasteful number, since it uses less digits than its factorization.

145552278641497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407406 (or 407399 counting only the distinct ones).

The product of its digits is 677376000, while the sum is 70.

The spelling of 145552278641497 in words is "one hundred forty-five trillion, five hundred fifty-two billion, two hundred seventy-eight million, six hundred forty-one thousand, four hundred ninety-seven".