2163655621262 has 16 divisors (see below), whose sum is σ = 3255182864640. Its totient is φ = 1078597768248.

The previous prime is 2163655621247. The next prime is 2163655621271. The reversal of 2163655621262 is 2621265563612.

It is a super-3 number, since 3×2163655621262³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 622523 + ... + 2171369.

It is an arithmetic number, because the mean of its divisors is an integer number (203448929040).

Almost surely, 2^{2163655621262} is an apocalyptic number.

2163655621262 is a deficient number, since it is larger than the sum of its proper divisors (1091527243378).

2163655621262 is a wasteful number, since it uses less digits than its factorization.

2163655621262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1550935.

The product of its digits is 1555200, while the sum is 47.

The spelling of 2163655621262 in words is "two trillion, one hundred sixty-three billion, six hundred fifty-five million, six hundred twenty-one thousand, two hundred sixty-two".