1385221934466 has 12 divisors (see below), whose sum is σ = 3001314191382. Its totient is φ = 461740644816.

The previous prime is 1385221934443. The next prime is 1385221934471. The reversal of 1385221934466 is 6644391225831.

It is a happy number.

1385221934466 is a `hidden beast` number, since 1 + 3 + 8 + 5 + 2 + 2 + 193 + 446 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1318526289441 + 66695645025 = 1148271^2 + 258255^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38478387051 + ... + 38478387086.

Almost surely, 2^{1385221934466} is an apocalyptic number.

1385221934466 is an abundant number, since it is smaller than the sum of its proper divisors (1616092256916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1385221934466 is a wasteful number, since it uses less digits than its factorization.

1385221934466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76956774145 (or 76956774142 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 54.

The spelling of 1385221934466 in words is "one trillion, three hundred eighty-five billion, two hundred twenty-one million, nine hundred thirty-four thousand, four hundred sixty-six".