22154547132 has 36 divisors (see below), whose sum is σ = 56031590160. Its totient is φ = 7380916992.

The previous prime is 22154547053. The next prime is 22154547133. The reversal of 22154547132 is 23174545122.

22154547132 is a `hidden beast` number, since 2 + 2 + 154 + 5 + 471 + 32 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22154547133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94888 + ... + 230895.

It is an arithmetic number, because the mean of its divisors is an integer number (1556433060).

Almost surely, 2^22154547132 is an apocalyptic number.

It is an amenable number.

22154547132 is an abundant number, since it is smaller than the sum of its proper divisors (33877043028).

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

22154547132 is a wasteful number, since it uses less digits than its factorization.

22154547132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327682 (or 327677 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The spelling of 22154547132 in words is "twenty-two billion, one hundred fifty-four million, five hundred forty-seven thousand, one hundred thirty-two".