7421573122165 has 32 divisors (see below), whose sum is σ = 8990144640000. Its totient is φ = 5881318625280.

The previous prime is 7421573122087. The next prime is 7421573122177. The reversal of 7421573122165 is 5612213751247.

It is not a de Polignac number, because 7421573122165 - 2¹⁵ = 7421573089397 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 866698174 + ... + 866706736.

It is an arithmetic number, because the mean of its divisors is an integer number (280942020000).

Almost surely, 2^{7421573122165} is an apocalyptic number.

It is an amenable number.

7421573122165 is a deficient number, since it is larger than the sum of its proper divisors (1568571517835).

7421573122165 is a wasteful number, since it uses less digits than its factorization.

7421573122165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11757.

The product of its digits is 705600, while the sum is 46.

The spelling of 7421573122165 in words is "seven trillion, four hundred twenty-one billion, five hundred seventy-three million, one hundred twenty-two thousand, one hundred sixty-five".