994655556499 has 4 divisors (see below), whose sum is σ = 1085078788920. Its totient is φ = 904232324080.

The previous prime is 994655556497. The next prime is 994655556509.

994655556499 is nontrivially palindromic in base 10.

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 994655556499 - 2¹ = 994655556497 is a prime.

It is a super-2 number, since 2×994655556499² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (994655556497) 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, 45211616194 + ... + 45211616215.

It is an arithmetic number, because the mean of its divisors is an integer number (271269697230).

Almost surely, 2^994655556499 is an apocalyptic number.

994655556499 is a deficient number, since it is larger than the sum of its proper divisors (90423232421).

994655556499 is a wasteful number, since it uses less digits than its factorization.

994655556499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90423232420.

The product of its digits is 2361960000, while the sum is 76.

The spelling of 994655556499 in words is "nine hundred ninety-four billion, six hundred fifty-five million, five hundred fifty-six thousand, four hundred ninety-nine".