155038313551280 has 80 divisors (see below), whose sum is σ = 376139418750720. Its totient is φ = 59318535623424.

The previous prime is 155038313551271. The next prime is 155038313551367. The reversal of 155038313551280 is 82155313830551.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 308948411 + ... + 309449829.

It is an arithmetic number, because the mean of its divisors is an integer number (4701742734384).

Almost surely, 2^{155038313551280} is an apocalyptic number.

155038313551280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155038313551280 is an abundant number, since it is smaller than the sum of its proper divisors (221101105199440).

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

155038313551280 is a wasteful number, since it uses less digits than its factorization.

155038313551280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669498 (or 669492 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 50.

The spelling of 155038313551280 in words is "one hundred fifty-five trillion, thirty-eight billion, three hundred thirteen million, five hundred fifty-one thousand, two hundred eighty".