1691381600146 has 8 divisors (see below), whose sum is σ = 2899511314560. Its totient is φ = 724877828628.

The previous prime is 1691381600141. The next prime is 1691381600147. The reversal of 1691381600146 is 6410061831961.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1691381600096 and 1691381600105.

It is not an unprimeable number, because it can be changed into a prime (1691381600141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60406485706 + ... + 60406485733.

It is an arithmetic number, because the mean of its divisors is an integer number (362438914320).

Almost surely, 2^{1691381600146} is an apocalyptic number.

1691381600146 is a deficient number, since it is larger than the sum of its proper divisors (1208129714414).

1691381600146 is a wasteful number, since it uses less digits than its factorization.

1691381600146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120812971448.

The product of its (nonzero) digits is 186624, while the sum is 46.

The spelling of 1691381600146 in words is "one trillion, six hundred ninety-one billion, three hundred eighty-one million, six hundred thousand, one hundred forty-six".