1625001665417 has 16 divisors (see below), whose sum is σ = 1844090304000. Its totient is φ = 1419524227584.

The previous prime is 1625001665389. The next prime is 1625001665489. The reversal of 1625001665417 is 7145661005261.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1625001665417 - 2³⁴ = 1607821796233 is a prime.

It is a super-2 number, since 2×1625001665417² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1625001661417) 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, 3311417 + ... + 3770342.

It is an arithmetic number, because the mean of its divisors is an integer number (115255644000).

Almost surely, 2^{1625001665417} is an apocalyptic number.

It is an amenable number.

1625001665417 is a deficient number, since it is larger than the sum of its proper divisors (219088638583).

1625001665417 is a wasteful number, since it uses less digits than its factorization.

1625001665417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7082720.

The product of its (nonzero) digits is 302400, while the sum is 44.

The spelling of 1625001665417 in words is "one trillion, six hundred twenty-five billion, one million, six hundred sixty-five thousand, four hundred seventeen".