1655157222222 has 16 divisors (see below), whose sum is σ = 3783216508032. Its totient is φ = 472902063480.

The previous prime is 1655157222221. The next prime is 1655157222233. The reversal of 1655157222222 is 2222227515561.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 39408505291 = 1655157222222 / (1 + 6 + 5 + 5 + 1 + 5 + 7 + 2 + 2 + 2 + 2 + 2 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1655157222221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19704252604 + ... + 19704252687.

It is an arithmetic number, because the mean of its divisors is an integer number (236451031752).

Almost surely, 2^{1655157222222} is an apocalyptic number.

1655157222222 is an abundant number, since it is smaller than the sum of its proper divisors (2128059285810).

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

1655157222222 is a wasteful number, since it uses less digits than its factorization.

1655157222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39408505303.

The product of its digits is 336000, while the sum is 42.

The spelling of 1655157222222 in words is "one trillion, six hundred fifty-five billion, one hundred fifty-seven million, two hundred twenty-two thousand, two hundred twenty-two".