22451155000 has 40 divisors (see below), whose sum is σ = 52603067880. Its totient is φ = 8980460000.

The previous prime is 22451154997. The next prime is 22451155019. The reversal of 22451155000 is 55115422.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2240116 + ... + 2250115.

It is an arithmetic number, because the mean of its divisors is an integer number (1315076697).

Almost surely, 2^22451155000 is an apocalyptic number.

22451155000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22451155000 is an abundant number, since it is smaller than the sum of its proper divisors (30151912880).

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

22451155000 is an equidigital number, since it uses as much as digits as its factorization.

22451155000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4490257 (or 4490238 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The spelling of 22451155000 in words is "twenty-two billion, four hundred fifty-one million, one hundred fifty-five thousand".