22150220251545 has 64 divisors (see below), whose sum is σ = 41296748544000. Its totient is φ = 11243039163840.

The previous prime is 22150220251477. The next prime is 22150220251631. The reversal of 22150220251545 is 54515202205122.

22150220251545 is a `hidden beast` number, since 2 + 21 + 50 + 2 + 20 + 25 + 1 + 545 = 666.

It is not a de Polignac number, because 22150220251545 - 2²⁵ = 22150186697113 is a prime.

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 63 ways as a sum of consecutive naturals, for example, 17306041 + ... + 18541830.

It is an arithmetic number, because the mean of its divisors is an integer number (645261696000).

Almost surely, 2^{22150220251545} is an apocalyptic number.

It is an amenable number.

22150220251545 is a deficient number, since it is larger than the sum of its proper divisors (19146528292455).

22150220251545 is a wasteful number, since it uses less digits than its factorization.

22150220251545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35848107 (or 35848101 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 36.

Adding to 22150220251545 its reverse (54515202205122), we get a palindrome (76665422456667).

The spelling of 22150220251545 in words is "twenty-two trillion, one hundred fifty billion, two hundred twenty million, two hundred fifty-one thousand, five hundred forty-five".