6201220616 has 8 divisors (see below), whose sum is σ = 11627288670. Its totient is φ = 3100610304.

The previous prime is 6201220607. The next prime is 6201220621. The reversal of 6201220616 is 6160221026.

It can be written as a sum of positive squares in only one way, i.e., 4657516516 + 1543704100 = 68246^2 + 39290^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 387576281 + ... + 387576296.

Almost surely, 2^6201220616 is an apocalyptic number.

It is an amenable number.

6201220616 is a deficient number, since it is larger than the sum of its proper divisors (5426068054).

6201220616 is a wasteful number, since it uses less digits than its factorization.

6201220616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775152583 (or 775152579 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 6201220616 is about 78747.8292780188. The cubic root of 6201220616 is about 1837.2111002820.

It can be divided in two parts, 62012 and 20616, that added together give a palindrome (82628).

The spelling of 6201220616 in words is "six billion, two hundred one million, two hundred twenty thousand, six hundred sixteen".