145511053551 has 12 divisors (see below), whose sum is σ = 210194805912. Its totient is φ = 97001750736.

The previous prime is 145511053517. The next prime is 145511053559. The reversal of 145511053551 is 155350115541.

145511053551 is a `hidden beast` number, since 1 + 4 + 5 + 5 + 110 + 535 + 5 + 1 = 666.

145511053551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145511053551 - 2²¹ = 145508956399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145511053559) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 301021 + ... + 617766.

It is an arithmetic number, because the mean of its divisors is an integer number (17516233826).

Almost surely, 2^145511053551 is an apocalyptic number.

145511053551 is a deficient number, since it is larger than the sum of its proper divisors (64683752361).

145511053551 is a wasteful number, since it uses less digits than its factorization.

145511053551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936390 (or 936387 counting only the distinct ones).

The product of its (nonzero) digits is 37500, while the sum is 36.

The spelling of 145511053551 in words is "one hundred forty-five billion, five hundred eleven million, fifty-three thousand, five hundred fifty-one".