1670663416925 has 12 divisors (see below), whose sum is σ = 2077031585280. Its totient is φ = 1333041089520.

The previous prime is 1670663416913. The next prime is 1670663416927. The reversal of 1670663416925 is 5296143660761.

It is not a de Polignac number, because 1670663416925 - 2¹⁰ = 1670663415901 is a prime.

It is a super-2 number, since 2×1670663416925² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1670663416927) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87231335 + ... + 87250484.

It is an arithmetic number, because the mean of its divisors is an integer number (173085965440).

Almost surely, 2^{1670663416925} is an apocalyptic number.

It is an amenable number.

1670663416925 is a deficient number, since it is larger than the sum of its proper divisors (406368168355).

1670663416925 is a wasteful number, since it uses less digits than its factorization.

1670663416925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174482212 (or 174482207 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 56.

The spelling of 1670663416925 in words is "one trillion, six hundred seventy billion, six hundred sixty-three million, four hundred sixteen thousand, nine hundred twenty-five".