6220995655 has 24 divisors (see below), whose sum is σ = 8704871280. Its totient is φ = 4255574400.

The previous prime is 6220995643. The next prime is 6220995659. The reversal of 6220995655 is 5565990226.

It is not a de Polignac number, because 6220995655 - 2¹⁷ = 6220864583 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a junction number, because it is equal to n+sod(n) for n = 6220995599 and 6220995608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6220995659) 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, 72355 + ... + 132955.

It is an arithmetic number, because the mean of its divisors is an integer number (362702970).

Almost surely, 2^6220995655 is an apocalyptic number.

6220995655 is a deficient number, since it is larger than the sum of its proper divisors (2483875625).

6220995655 is a wasteful number, since it uses less digits than its factorization.

6220995655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61039 (or 61032 counting only the distinct ones).

The product of its (nonzero) digits is 1458000, while the sum is 49.

The square root of 6220995655 is about 78873.2886026695. The cubic root of 6220995655 is about 1839.1619189560.

The spelling of 6220995655 in words is "six billion, two hundred twenty million, nine hundred ninety-five thousand, six hundred fifty-five".