22155152004 has 36 divisors (see below), whose sum is σ = 57516907084. Its totient is φ = 7185454272.

The previous prime is 22155151981. The next prime is 22155152057. The reversal of 22155152004 is 40025155122.

It can be written as a sum of positive squares in 2 ways, for example, as 9780814404 + 12374337600 = 98898^2 + 111240^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8315167 + ... + 8317830.

Almost surely, 2^22155152004 is an apocalyptic number.

It is an amenable number.

22155152004 is an abundant number, since it is smaller than the sum of its proper divisors (35361755080).

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

22155152004 is a wasteful number, since it uses less digits than its factorization.

22155152004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16633044 (or 16633039 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The spelling of 22155152004 in words is "twenty-two billion, one hundred fifty-five million, one hundred fifty-two thousand, four".