7445155016261 has 16 divisors (see below), whose sum is σ = 7558066033200. Its totient is φ = 7332911308800.

The previous prime is 7445155016237. The next prime is 7445155016281. The reversal of 7445155016261 is 1626105515447.

It can be written as a sum of positive squares in 8 ways, for example, as 7589720161 + 7437565296100 = 87119^2 + 2727190^2 .

It is a cyclic number.

It is not a de Polignac number, because 7445155016261 - 2³⁴ = 7427975147077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7445155016281) 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, 79206551 + ... + 79300491.

It is an arithmetic number, because the mean of its divisors is an integer number (472379127075).

Almost surely, 2^{7445155016261} is an apocalyptic number.

It is an amenable number.

7445155016261 is a deficient number, since it is larger than the sum of its proper divisors (112911016939).

7445155016261 is a wasteful number, since it uses less digits than its factorization.

7445155016261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97480.

The product of its (nonzero) digits is 1008000, while the sum is 47.

The spelling of 7445155016261 in words is "seven trillion, four hundred forty-five billion, one hundred fifty-five million, sixteen thousand, two hundred sixty-one".