145601345551 has 4 divisors (see below), whose sum is σ = 145602661032. Its totient is φ = 145600030072.

The previous prime is 145601345453. The next prime is 145601345627. The reversal of 145601345551 is 155543106541.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 145601345551 - 2⁷ = 145601345423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145601345651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 474745 + ... + 718738.

It is an arithmetic number, because the mean of its divisors is an integer number (36400665258).

Almost surely, 2^145601345551 is an apocalyptic number.

145601345551 is a deficient number, since it is larger than the sum of its proper divisors (1315481).

145601345551 is a wasteful number, since it uses less digits than its factorization.

145601345551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315480.

The product of its (nonzero) digits is 180000, while the sum is 40.

The spelling of 145601345551 in words is "one hundred forty-five billion, six hundred one million, three hundred forty-five thousand, five hundred fifty-one".