1138485804466 has 16 divisors (see below), whose sum is σ = 1712126568600. Its totient is φ = 567777310848.

The previous prime is 1138485804427. The next prime is 1138485804541. The reversal of 1138485804466 is 6644085848311.

It can be written as a sum of positive squares in 4 ways, for example, as 1011575304441 + 126910500025 = 1005771^2 + 356245^2 .

It is a super-2 number, since 2×1138485804466² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1138485804466.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6500940 + ... + 6673768.

Almost surely, 2^{1138485804466} is an apocalyptic number.

1138485804466 is a deficient number, since it is larger than the sum of its proper divisors (573640764134).

1138485804466 is a wasteful number, since it uses less digits than its factorization.

1138485804466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181293.

The product of its (nonzero) digits is 17694720, while the sum is 58.

The spelling of 1138485804466 in words is "one trillion, one hundred thirty-eight billion, four hundred eighty-five million, eight hundred four thousand, four hundred sixty-six".