22040154415521 has 36 divisors (see below), whose sum is σ = 35175125578320. Its totient is φ = 13188584550960.

The previous prime is 22040154415501. The next prime is 22040154415579. The reversal of 22040154415521 is 12551445104022.

22040154415521 is a `hidden beast` number, since 2 + 2 + 0 + 40 + 1 + 54 + 41 + 5 + 521 = 666.

It is not a de Polignac number, because 22040154415521 - 2⁷ = 22040154415393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22040154415501) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 17218051 + ... + 18453768.

It is an arithmetic number, because the mean of its divisors is an integer number (977086821620).

Almost surely, 2^{22040154415521} is an apocalyptic number.

It is an amenable number.

22040154415521 is a deficient number, since it is larger than the sum of its proper divisors (13134971162799).

22040154415521 is a wasteful number, since it uses less digits than its factorization.

22040154415521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35671994 (or 35671912 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 36.

Adding to 22040154415521 its reverse (12551445104022), we get a palindrome (34591599519543).

The spelling of 22040154415521 in words is "twenty-two trillion, forty billion, one hundred fifty-four million, four hundred fifteen thousand, five hundred twenty-one".