1466887199890 has 16 divisors (see below), whose sum is σ = 3017596525632. Its totient is φ = 502932754224.

The previous prime is 1466887199879. The next prime is 1466887199917. The reversal of 1466887199890 is 989917886641.

It is a super-2 number, since 2×1466887199890² (a number of 25 digits) contains 22 as substring.

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, 10477765644 + ... + 10477765783.

It is an arithmetic number, because the mean of its divisors is an integer number (188599782852).

Almost surely, 2^{1466887199890} is an apocalyptic number.

1466887199890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1466887199890 is an abundant number, since it is smaller than the sum of its proper divisors (1550709325742).

1466887199890 is a wasteful number, since it uses less digits than its factorization.

1466887199890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20955531441.

The product of its (nonzero) digits is 376233984, while the sum is 76.

The spelling of 1466887199890 in words is "one trillion, four hundred sixty-six billion, eight hundred eighty-seven million, one hundred ninety-nine thousand, eight hundred ninety".