7220556646151 has 4 divisors (see below), whose sum is σ = 7396667783904. Its totient is φ = 7044445508400.

The previous prime is 7220556646139. The next prime is 7220556646169. The reversal of 7220556646151 is 1516466550227.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7220556646151 - 2⁶ = 7220556646087 is a prime.

It is a super-2 number, since 2×7220556646151² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7220556646151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7220556646181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88055568815 + ... + 88055568896.

It is an arithmetic number, because the mean of its divisors is an integer number (1849166945976).

Almost surely, 2^{7220556646151} is an apocalyptic number.

7220556646151 is a deficient number, since it is larger than the sum of its proper divisors (176111137753).

7220556646151 is a wasteful number, since it uses less digits than its factorization.

7220556646151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176111137752.

The product of its (nonzero) digits is 3024000, while the sum is 50.

The spelling of 7220556646151 in words is "seven trillion, two hundred twenty billion, five hundred fifty-six million, six hundred forty-six thousand, one hundred fifty-one".