155005455633330 has 64 divisors (see below), whose sum is σ = 372246365207808. Its totient is φ = 41308871619840.

The previous prime is 155005455633307. The next prime is 155005455633331. The reversal of 155005455633330 is 33336554500551.

It is a self number, because there is not a number n which added to its sum of digits gives 155005455633330.

It is not an unprimeable number, because it can be changed into a prime (155005455633331) 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 31 ways as a sum of consecutive naturals, for example, 1155939547 + ... + 1156073633.

It is an arithmetic number, because the mean of its divisors is an integer number (5816349456372).

Almost surely, 2^{155005455633330} is an apocalyptic number.

155005455633330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155005455633330 is an abundant number, since it is smaller than the sum of its proper divisors (217240909574478).

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

155005455633330 is a wasteful number, since it uses less digits than its factorization.

155005455633330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157971.

The product of its (nonzero) digits is 6075000, while the sum is 48.

The spelling of 155005455633330 in words is "one hundred fifty-five trillion, five billion, four hundred fifty-five million, six hundred thirty-three thousand, three hundred thirty".