21152155670162 has 32 divisors (see below), whose sum is σ = 36791256680640. Its totient is φ = 9013840199680.

The previous prime is 21152155670143. The next prime is 21152155670171. The reversal of 21152155670162 is 26107655125112.

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, 109936112 + ... + 110128347.

It is an arithmetic number, because the mean of its divisors is an integer number (1149726771270).

Almost surely, 2^{21152155670162} is an apocalyptic number.

21152155670162 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21152155670162 is a deficient number, since it is larger than the sum of its proper divisors (15639101010478).

21152155670162 is a wasteful number, since it uses less digits than its factorization.

21152155670162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220064746.

The product of its (nonzero) digits is 252000, while the sum is 44.

The spelling of 21152155670162 in words is "twenty-one trillion, one hundred fifty-two billion, one hundred fifty-five million, six hundred seventy thousand, one hundred sixty-two".