3656220014261 has 16 divisors (see below), whose sum is σ = 3707960630400. Its totient is φ = 3604807224000.

The previous prime is 3656220014257. The next prime is 3656220014287. The reversal of 3656220014261 is 1624100226563.

It is a cyclic number.

It is not a de Polignac number, because 3656220014261 - 2² = 3656220014257 is a prime.

It is a super-2 number, since 2×3656220014261² (a number of 26 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 (3656220014201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31950695 + ... + 32064923.

It is an arithmetic number, because the mean of its divisors is an integer number (231747539400).

Almost surely, 2^{3656220014261} is an apocalyptic number.

It is an amenable number.

3656220014261 is a deficient number, since it is larger than the sum of its proper divisors (51740616139).

3656220014261 is a wasteful number, since it uses less digits than its factorization.

3656220014261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115660.

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 3656220014261 in words is "three trillion, six hundred fifty-six billion, two hundred twenty million, fourteen thousand, two hundred sixty-one".