155011035221356 has 24 divisors (see below), whose sum is σ = 272115522176400. Its totient is φ = 77263855718592.

The previous prime is 155011035221353. The next prime is 155011035221387. The reversal of 155011035221356 is 653122530110551.

It is not an unprimeable number, because it can be changed into a prime (155011035221353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8556295 + ... + 19576318.

It is an arithmetic number, because the mean of its divisors is an integer number (11338146757350).

Almost surely, 2^{155011035221356} is an apocalyptic number.

It is an amenable number.

155011035221356 is a deficient number, since it is larger than the sum of its proper divisors (117104486955044).

155011035221356 is a wasteful number, since it uses less digits than its factorization.

155011035221356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28136913 (or 28136911 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 40.

The spelling of 155011035221356 in words is "one hundred fifty-five trillion, eleven billion, thirty-five million, two hundred twenty-one thousand, three hundred fifty-six".