155045266063640 has 32 divisors (see below), whose sum is σ = 350659371192480. Its totient is φ = 61696769083392.

The previous prime is 155045266063607. The next prime is 155045266063687. The reversal of 155045266063640 is 46360662540551.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10041784124 + ... + 10041799563.

It is an arithmetic number, because the mean of its divisors is an integer number (10958105349765).

Almost surely, 2^{155045266063640} is an apocalyptic number.

155045266063640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155045266063640 is an abundant number, since it is smaller than the sum of its proper divisors (195614105128840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155045266063640 is a wasteful number, since it uses less digits than its factorization.

155045266063640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20083583891 (or 20083583887 counting only the distinct ones).

The product of its (nonzero) digits is 15552000, while the sum is 53.

The spelling of 155045266063640 in words is "one hundred fifty-five trillion, forty-five billion, two hundred sixty-six million, sixty-three thousand, six hundred forty".