155140323346545 has 16 divisors (see below), whose sum is σ = 249710891713920. Its totient is φ = 82246047665024.

The previous prime is 155140323346513. The next prime is 155140323346597. The reversal of 155140323346545 is 545643323041551.

It is a cyclic number.

It is not a de Polignac number, because 155140323346545 - 2⁵ = 155140323346513 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 30966129900 + ... + 30966134909.

It is an arithmetic number, because the mean of its divisors is an integer number (15606930732120).

Almost surely, 2^{155140323346545} is an apocalyptic number.

155140323346545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

155140323346545 is a deficient number, since it is larger than the sum of its proper divisors (94570568367375).

155140323346545 is a wasteful number, since it uses less digits than its factorization.

155140323346545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61932264984.

The product of its (nonzero) digits is 12960000, while the sum is 51.

The spelling of 155140323346545 in words is "one hundred fifty-five trillion, one hundred forty billion, three hundred twenty-three million, three hundred forty-six thousand, five hundred forty-five".