1662409947367 has 4 divisors (see below), whose sum is σ = 1790287635640. Its totient is φ = 1534532259096.

The previous prime is 1662409947311. The next prime is 1662409947493. The reversal of 1662409947367 is 7637499042661.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1662409947367 - 2³⁵ = 1628050208999 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1662409947299 and 1662409947308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1662409947067) 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, 63938844117 + ... + 63938844142.

It is an arithmetic number, because the mean of its divisors is an integer number (447571908910).

Almost surely, 2^{1662409947367} is an apocalyptic number.

1662409947367 is a deficient number, since it is larger than the sum of its proper divisors (127877688273).

1662409947367 is a wasteful number, since it uses less digits than its factorization.

1662409947367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127877688272.

The product of its (nonzero) digits is 82301184, while the sum is 64.

The spelling of 1662409947367 in words is "one trillion, six hundred sixty-two billion, four hundred nine million, nine hundred forty-seven thousand, three hundred sixty-seven".