21152361155330 has 64 divisors (see below), whose sum is σ = 40114206720000. Its totient is φ = 8008425379008.

The previous prime is 21152361155323. The next prime is 21152361155351. The reversal of 21152361155330 is 3355116325112.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1071592601 + ... + 1071612339.

It is an arithmetic number, because the mean of its divisors is an integer number (626784480000).

Almost surely, 2^{21152361155330} is an apocalyptic number.

21152361155330 is a deficient number, since it is larger than the sum of its proper divisors (18961845564670).

21152361155330 is a wasteful number, since it uses less digits than its factorization.

21152361155330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24551.

The product of its (nonzero) digits is 81000, while the sum is 38.

The spelling of 21152361155330 in words is "twenty-one trillion, one hundred fifty-two billion, three hundred sixty-one million, one hundred fifty-five thousand, three hundred thirty".