22451511155 has 8 divisors (see below), whose sum is σ = 26956087200. Its totient is φ = 17951693056.

The previous prime is 22451511151. The next prime is 22451511179. The reversal of 22451511155 is 55111515422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22451511155 - 2² = 22451511151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22451511151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1179095 + ... + 1197984.

It is an arithmetic number, because the mean of its divisors is an integer number (3369510900).

Almost surely, 2^22451511155 is an apocalyptic number.

22451511155 is a deficient number, since it is larger than the sum of its proper divisors (4504576045).

22451511155 is a wasteful number, since it uses less digits than its factorization.

22451511155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2378973.

The product of its digits is 10000, while the sum is 32.

The spelling of 22451511155 in words is "twenty-two billion, four hundred fifty-one million, five hundred eleven thousand, one hundred fifty-five".