1602779221231 has 8 divisors (see below), whose sum is σ = 1672514786304. Its totient is φ = 1533047782200.

The previous prime is 1602779221229. The next prime is 1602779221249. The reversal of 1602779221231 is 1321229772061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1602779221231 - 2¹ = 1602779221229 is a prime.

It is a super-2 number, since 2×1602779221231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1602779224231) 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, 224251 + ... + 1804396.

It is an arithmetic number, because the mean of its divisors is an integer number (209064348288).

Almost surely, 2^{1602779221231} is an apocalyptic number.

1602779221231 is a deficient number, since it is larger than the sum of its proper divisors (69735565073).

1602779221231 is a wasteful number, since it uses less digits than its factorization.

1602779221231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2063021.

The product of its (nonzero) digits is 127008, while the sum is 43.

The spelling of 1602779221231 in words is "one trillion, six hundred two billion, seven hundred seventy-nine million, two hundred twenty-one thousand, two hundred thirty-one".