7221607315077 has 16 divisors (see below), whose sum is σ = 9664159610880. Its totient is φ = 4796756118000.

The previous prime is 7221607315003. The next prime is 7221607315199. The reversal of 7221607315077 is 7705137061227.

It is a de Polignac number, because none of the positive numbers 2^k-7221607315077 is a prime.

It is a super-2 number, since 2×7221607315077² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7221607315277) 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, 2166549 + ... + 4374602.

It is an arithmetic number, because the mean of its divisors is an integer number (604009975680).

Almost surely, 2^{7221607315077} is an apocalyptic number.

It is an amenable number.

7221607315077 is a deficient number, since it is larger than the sum of its proper divisors (2442552295803).

7221607315077 is a wasteful number, since it uses less digits than its factorization.

7221607315077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6542504.

The product of its (nonzero) digits is 864360, while the sum is 48.

The spelling of 7221607315077 in words is "seven trillion, two hundred twenty-one billion, six hundred seven million, three hundred fifteen thousand, seventy-seven".