7072066041581 has 4 divisors (see below), whose sum is σ = 7105582942464. Its totient is φ = 7038549140700.

The previous prime is 7072066041559. The next prime is 7072066041637. The reversal of 7072066041581 is 1851406602707.

7072066041581 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7072066041581 is a prime.

It is a super-2 number, since 2×7072066041581² (a number of 27 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 (7072066041541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16758450125 + ... + 16758450546.

It is an arithmetic number, because the mean of its divisors is an integer number (1776395735616).

Almost surely, 2^{7072066041581} is an apocalyptic number.

It is an amenable number.

7072066041581 is a deficient number, since it is larger than the sum of its proper divisors (33516900883).

7072066041581 is a wasteful number, since it uses less digits than its factorization.

7072066041581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33516900882.

The product of its (nonzero) digits is 564480, while the sum is 47.

The spelling of 7072066041581 in words is "seven trillion, seventy-two billion, sixty-six million, forty-one thousand, five hundred eighty-one".