220162156550 has 48 divisors (see below), whose sum is σ = 483098698752. Its totient is φ = 73049191200.

The previous prime is 220162156517. The next prime is 220162156553. The reversal of 220162156550 is 55651261022.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 220162156550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220162156553) 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, 10134872 + ... + 10156571.

It is an arithmetic number, because the mean of its divisors is an integer number (10064556224).

Almost surely, 2^220162156550 is an apocalyptic number.

220162156550 is an abundant number, since it is smaller than the sum of its proper divisors (262936542202).

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

220162156550 is a wasteful number, since it uses less digits than its factorization.

220162156550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20291493 (or 20291488 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 35.

The spelling of 220162156550 in words is "two hundred twenty billion, one hundred sixty-two million, one hundred fifty-six thousand, five hundred fifty".