22156057155550 has 48 divisors (see below), whose sum is σ = 43039380160512. Its totient is φ = 8469734636000.

The previous prime is 22156057155521. The next prime is 22156057155587. The reversal of 22156057155550 is 5555175065122.

It is a junction number, because it is equal to n+sod(n) for n = 22156057155494 and 22156057155503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7045654 + ... + 9692953.

It is an arithmetic number, because the mean of its divisors is an integer number (896653753344).

Almost surely, 2^{22156057155550} is an apocalyptic number.

22156057155550 is a deficient number, since it is larger than the sum of its proper divisors (20883323004962).

22156057155550 is a wasteful number, since it uses less digits than its factorization.

22156057155550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16739793 (or 16739788 counting only the distinct ones).

The product of its (nonzero) digits is 2625000, while the sum is 49.

The spelling of 22156057155550 in words is "twenty-two trillion, one hundred fifty-six billion, fifty-seven million, one hundred fifty-five thousand, five hundred fifty".