22154033151540 has 72 divisors (see below), whose sum is σ = 67201633830240. Its totient is φ = 5907648406464.

The previous prime is 22154033151529. The next prime is 22154033151541. The reversal of 22154033151540 is 4515133045122.

22154033151540 is a `hidden beast` number, since 2 + 21 + 5 + 40 + 3 + 3 + 1 + 51 + 540 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 22154033151495 and 22154033151504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22154033151541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10788067 + ... + 12676373.

It is an arithmetic number, because the mean of its divisors is an integer number (933356025420).

Almost surely, 2^{22154033151540} is an apocalyptic number.

22154033151540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22154033151540 is an abundant number, since it is smaller than the sum of its proper divisors (45047600678700).

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

22154033151540 is a wasteful number, since it uses less digits than its factorization.

22154033151540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1953501 (or 1953496 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 22154033151540 its reverse (4515133045122), we get a palindrome (26669166196662).

The spelling of 22154033151540 in words is "twenty-two trillion, one hundred fifty-four billion, thirty-three million, one hundred fifty-one thousand, five hundred forty".