22155132356623 has 32 divisors (see below), whose sum is σ = 27817031024640. Its totient is φ = 17205076706400.

The previous prime is 22155132356537. The next prime is 22155132356633. The reversal of 22155132356623 is 32665323155122.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22155132356623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22155132356633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15041098 + ... + 16448248.

It is an arithmetic number, because the mean of its divisors is an integer number (869282219520).

Almost surely, 2^{22155132356623} is an apocalyptic number.

22155132356623 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

22155132356623 is a deficient number, since it is larger than the sum of its proper divisors (5661898668017).

22155132356623 is a wasteful number, since it uses less digits than its factorization.

22155132356623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412347.

The product of its digits is 1944000, while the sum is 46.

The spelling of 22155132356623 in words is "twenty-two trillion, one hundred fifty-five billion, one hundred thirty-two million, three hundred fifty-six thousand, six hundred twenty-three".